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82

Thermodynamic Properties 

of Minerals and Related 

Substances at 298.15°K (25.0°C) 

and One Atmosphere (1.013 Bars) 

Pressure and at 

Higher Temperatures

GEOLOGICAL SURVEY BULLETIN 1259

ORTON MEMORIAL LIBRARY

i: '£ OHIO STATE UWVEHSITY

CO

a

I 

to

Or

JUN 1 6 2000

Thermodynamic Properties 

of Minerals and Related 

Substances at 298.15°K (25.0°C) 

and One Atmosphere (1.013 Bars) 

Pressure and at 

Higher Temperatures

By RICHARD A. ROBIE ajid DAVID R. WALDBAUM

GEOLOGICAL SURVEY BULLETIN 1259

A summary of the thermodynamic data for 

minerals at 298.15°K together with calculated 

values of the functions AH°f,T, AGI,T, ST, 

and (Gr H^.s/T) at temperatures up to 

2,000°K

ORTON MEMORIAL LIBRARY

THE OHIO STATE UNIVERSITY

155 S. OVAL DRIVE

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1968
UNITED STATES DEPARTMENT OF THE INTERIOR

WALTER J. HICKEL, Secretary

GEOLOGICAL SURVEY 

William T. Pecora, Director

Library of Congress catalog-card No. OS 68-223

First printing 1968 

Second printing 1970

For sale by the Superintendent of Documents, U.S. Government Printing OflBlce 

Washington, D.C. 20402 - Price $1.25 (paper cover)
CONTENTS

Page

Abstract _____________________________________ 1 

Introduction ___________________________________... 1 

Acknowledgments ________________________________ 2 

Physical constants and atomic weights ________________ 3 

Reference states and transitions _________,______________ 5 

Sources of data ___________,________________,______ 5 

Methods of calculation ______________________________ 8 

Thermodynamic properties at 298.15°K ___________________ 11 

Thermodynamic properties at high temperatures ______________ 26 

References and notes _______________________________ 238 

Index of names ___________________________________ 249 

Index of formulas ________________________________ 253

TABLES

Page

TABLE 1. Symbols and constants __________________ 3

2. Atomic weights for 1963 _____________________ 4

3. Chronological list of important critical summaries of

thermodynamic data for inorganic substances _______. 6

THERMODYNAMIC PROPERTIES OF MINERALS AND

RELATED SUBSTANCES AT 298.15°K (25.0°C) AND

ONE ATMOSPHERE (1.013 BARS) PRESSURE

AND AT HIGHER TEMPERATURES

By RICHARD A. ROBIE and DAVID R. WALDBAUM

ABSTRACT

Critically selected values for the entropy (S°288.«), molar volume (VWw), 

and for the heat and Gibbs free energy of formation (AH 0 f,z98.i5 and 

AG°f.288.is) are given for 50 reference elements and 285 minerals and related 

substances. For 211 materials for which high-temperature heat-capacity or heat-content data are available AH°f,T , AG°f,T , S°T, logKf/r and 

(G°T H°298.i5/T) are tabulated at 100°K intervals for temperatures up 

to 2,000°K. For substances having solid-state phase changes or whose melting or boiling point is less than 2,000°K, we also have tabulated the properties listed above at the temperature of the phase change so that the heat 

or entropy changes associated with the transformation form an integral 

part of the high-temperature tables.

INTRODUCTION

The purpose of these tables is to present a critical summary of 

the available thermodynamic data for minerals and related substances in a convenient form for the use of earth scientists. To 

make the tables as useful as possible we have tried to include as 

much of the necessary auxiliary data as possible so that a single 

set of tables would suffice for most calculations, to insure internal 

consistency and to provide for the means of rapid revision and 

expansion as new data become available.

This compilation is divided into two sections. In the first section 

we give values for the entropy (S°288.i 5 ), molar volume (V°298 .K ), 

the heat (enthalpy, AH°f.298.i5 ) and Gibbs free energy (AG0f,288. 15 ), 

and the logarithm of the equilibrium constant of formation (log 

Kf, 298.15) for the reference elements, minerals, a number of oxides, 

and other substances of geological interest. The data have been 

critically evaluated and uncertainties assigned to the 298.15°K 

properties. The sources of data are indicated numerically in the 

tables and listed in complete form following the tables.
2 THERMODYNAMIC PROPERTIES OF MINERALS

The data are arranged in order of their conventional mineralogical groups. Within each group (for example the oxides) 

the listing is by alphabetical order of the chemical symbol of the 

principal cation.

The tables in the second section contain values for the 

high-temperature thermodynamic properties, H°T H°ns.u, 

(G°T -H°298 .iS )/T, S°T, AG°f,T, AH°,,T, and log Kf,T at 100°K intervals up to 2000°K. Heat-capacity data, as such, have been omitted 

from these tables in favor of the function H°T H0298.i 5 which is 

the quantity actually measured in most high-temperature experiments. Heat capacities, CP , derived from H°T H°298 .i5 data are at 

best only approximate and their use should be avoided when 

possible. Approximate values for CP are readily obtained from 

the first differences of the tabulated H°T H 0298.i5 function.

Thermodynamic properties of gases at high pressures have not 

been included in these tables. High pressure-high temperature 

functions of the geologically important gases H20 and C02 are 

given by Bain (1964), Hilsenrath and others (1955), and Robie 

(1966).

These tables entirely supersede two earlier reports on the same 

subject matter by Robie (1959,1966)!

ACKNOWLEDGMENTS

Professor E. F. Westrum, Jr., University of Michigan, Professor 0. J. Kleppa, University of Chicago, and P. B. Barton, Jr., 

Priestley Toulmin, and D. R. Wones, U.S. Geological Survey, have 

kindly permitted us to use some of their unpublished data. We are 

particularly grateful to Keith Beardsley of the U.S. Geological 

Survey who wrote the computer routines for processing the 

298.15°K tables and the bibliography. E-an Zen of the U.S. Geological Survey and Professor J. B. Thompson, Jr., of Harvard 

University offered many helpful suggestions for improving the 

clarity and usefulness of these tables.

Computer facilities at the Massachusetts Institute of Technology 

were used initially to develop the program for compiling hightemperature thermodynamic functions. More recent revisions of 

the program and the present set of tables were prepared at the 

Harvard Computing Center, with computer costs supported by 

the Higgins Fund and the Committee on Experimental Geology 

and Geophysics of Harvard University.
THERMODYNAMIC PROPERTIES OF MINERALS 3

PHYSICAL CONSTANTS AND ATOMIC WEIGHTS

The symbols and constants adopted for this report are listed in 

table 1. Values for the physical constants used in the calculations 

were those recommended by the National Academy of ScienceNational Research Council (U.S. Natl. Bur. Standards Tech. News 

Bull., v. 47, p. 175-177, 1963). For convenience we also give 

values of the international atomic weights for 1963 (scale 

C12 = 12.0000) in alphabetical order by their chemical symbol in 

table 2. Elements for which no atomic weight is listed have no 

stable isotope.

TABLE 1. Symbols and constants 

T Temperature in degrees Kelvin, (°K) 

gfw Gram formula weight 

H° -H° Enthalpy at temperature T relative to 298.15°K in cal gfw1 , T

S° Entropy at temperature T in cal deg-gfw" 1 

G° -H°

T SM.15

 m Gibbs free energy function in cal deg-gfw" 1

A^f° Heat of formation from reference state in cal gfw" 1

AG° Gibbs free energy of formation from reference state in cal 

gfw"1

Kr Equilibrium constant of formation

Cp Heat capacity at constant pressure in cal deg-gfw" 1

0 Superscript indicates the substance is in its standard state

» TTO

meit Heat of melting at one atmosphere in cal gfw" 1

AH° Heat of vaporization to ideal gas at one atmosphere at the 

"p normal boiling point in cal gfw" 1

V° Volume of one gram formula weight at one atmosphere and 

"* " 298.15°K in cm8

R Gas constant, 1.98717 ±.00030 cal deg-gfw1 , 8.31469 joules 

deg-gfw" 1

cal Calorie, unit of energy, 4.1840 absolute joules, 41.2929 cm* 

atmosphere

A Avogadro's number, (6.02252 ±. 00028) xlO23 formula ' units gfw1

P Pressure, either in atmosphere or bars

atm Atmosphere, 1,013,260 dynes cm"*

bar Bar, 1,000,000 dynes cm"2

log Common logarithm, base 10

In Natural logarithm, base e= 2.71828. . .
THERMODYNAMIC PROPERTIES OF MINERALS

TABLE 2. Atomic weights for 1963

Element

SllvPT*

Aluminum _

Americium

Argon

Arsenic

Astatine

Gold

Boron

Barium

Beryllium

Bismuth

Carbon

Calcium

Cadmium

Cerium

Chlorine

Cobalt

Cesium

Copper

Dysprosium

Erbium

Europium

Fluorine

Iron

Francium

Gallium

Gadolinium

Germanium

Hydrogen

Helium

Hafnium

Mercury

Holmium

Iodine

Indium

Iridium

Potassium

Krypton

Lanthanum

Lithium

Lutetium

Magnesium

Manganese

Molybdenum

Symbol

Ac

A<r

Al

_ _ Am243

_ - Ar

As

At

Au

B

Ba

__ Be

Bi

Br

_ _ C

_ _ Ca

_ Cd

. _Ce

Cl

Co

Cr

._ Cs

- Cu

_____Dy

Er

Eu

F

Fe

Fr

Ga

Ge

. .. H

He

Hf

_____Hg

Ho

I

In

Ir

_ .K

. ^ Kr

La

Li

Lu

- -Mg

Mn

__ Mo

Atomic 

weight

107.870

26.9815

243.061

39.948

74.9216

196.967

10.811

137.34

Q 01 99

208.980

7Q ana

12.01115

40.08

112.40

140.12

35.453

58.9332

51.996

132.905

63.54

162.50

167.26

151.96

18.9984

55.847

69.72

157.25

72.59

1.00797

4.0026

178.49

200.59

164.930

126.9044

114.82

192.2

39.102

83.80

138.91

6.939

174.97

24.312

54.9380

95.94

Element

Sodium

Neodymium

Ajlf»lfp1

Owcrpri

Osmium

Protactinium

Lead

Palladium

Polonium

Promethium

Praseodymium

Platinum

Plutonium

Radium

Rubidium _

Rhenium

Rhodium

Radon

Ruthenium

Sulfur

Antimony

Scandium

Selenium

Silicon

Samarium

Tin

Strontium

Tellurium

Titanium

Thallium

Thulium

Uranium

Vanadium

T^n n cp tt-.ATi

Xenon

Yttrium

Ytterbium

Zinc

Zirconium _

Symbol

_ N

Na

Nb

Nd

Ne

Ni

Np237

_ 0

Os

_ _P

_ Pa

_ Pb

_ .. Pd

__ Po

_ _ Pm

__ Pr

_ Pt

Pu239

Ra

_ Rb

__ Re

_ Rh

_ Rn

_ Ru

_ S

_ Sb

_ .Sc

- -Se

_ _Si

Sm

. _ Sn

Tn

Tb

__ Tc

_ . _Te

_ Ti

_ Tl

- U

V

. W

. Xe

. .. Y

.. Yb

. _Zn

. Zr

Atomic 

weight

14.0067

22.9898

no onft

144 94

9ft 1 8°.

58.71

OQ7 ft/lQ

15 9994

1Qft 9

on 0700

207.19

106.4

140.907

195.09

239.052

85.47

186.2

102.905

101.07

32.064

121.75

44.956

78.96

28.086

150.35

118.69

1 8fV 0/18

1 l^R Q94

127.60

232.038

204.37

238.03

50.942

-i oq or

m of)

88.905

173.04

65.37

91.22
PHYSICAL CONSTANTS AND ATOMIC WEIGHTS 5

REFERENCE STATES AND TRANSITIONS

The reference states for AH° f, AG°f, and log Kf of the compounds are the elements in their standard state at one atmosphere 

pressure and the stated temperature. The standard states for the 

condensed elements are the most stable form at one atmosphere 

and the stated temperature. For gaseous elements the standard 

state is the ideal gas at one atmosphere pressure. Data are listed 

for 50 elements used as reference phases in their standard reference states, and for a few in nonstandard states, for example, 

S2 gas and the diamond form of carbon. Melting and boiling points 

and their associated enthalpy changes are listed at the bottom of 

each of the tables of high-temperature properties. A solid horizontal line in the tables indicates a transition in the phase. A 

dashed line in the columns AH 0 ,, AG° f, and log K, indicates a 

transition in one of the reference elements. Transitions in the 

reference elements are also listed separately at the bottom of each 

table. Inasmuch as most of the high-temperature "heat-capacity" 

data are actually heat-content measurements and not true specific 

heats, we have followed the practice of Kelley (1960) and treated 

all of the high-temperature transitions as first order at a single temperature. At the transition temperature the functions 

H°T H°298.i5, S°T, and AH°f,T make a stepwise change; AG0 f,T 

and (G°T H° 298 .i5)/T are continuous but their temperature 

derivatives change abruptly. These properties of the functions 

must be borne in mind when interpolating in the tables.

Heats and free energies of formation for multiple oxide phases 

using the binary oxides as reference states have been computed 

as an internal check for errors in the input data, but are not 

tabulated because of the lack of reliable data for K2 0, Na2 0, and 

FeO. We do, however, give values for most of the common oxides 

for those who wish to use them as reference states.

SOURCES OF DATA

Many summaries of thermochemical data have been particularly 

helpful in constructing these tables. In table 3 we give an abbreviated chronological listing of the more important contributions 

to the critical evaluation and collection of thermodynamic data of 

particular interest to earth scientists.

For the thermodynamic functions of the elements we have 

adopted the values chosen by Hultgren, Orr, Anderson, and Kelley 

(1963 and supplements) and (or) the JANAF tables (Stull and 

others, 1966) whenever these tabulations clearly superseded the
THERMODYNAMIC PROPERTIES OF MINERALS

TABLE 3. Chronological list of important critical summaries of 

thermodynamic data for inorganic substances

[Dates in brackets refer to earlier reports superseded by a more 

recent compilation. Only the most recent summary is listed in 

the references]

Authors and date Type of data

K. K. Kelley [1932, 1949], K. K. 

Kelley and E. G. King, 1961 ___ S°

* 298.15

K. K. Kelley [1934, 1949], 1960 ___ H° -H° , S° -S°

T 298.15 T 298.15

K. K. Kelley and C. T. Anderson,

1935 _________________._ AH° and AG°

. f,298.15 M98.15

of carbonates

F. R. Bichowsky and F. D. Rossini,

1936 __________________ AH°

f,298.15

K. K. Kelley, 1937 ___________ AH° and AG°

f,298. 15 f.298.1S

F. D. Rossini and others, 1952 ___ S° , AH° , and

298.15 f,298.15

of sulfur compounds

S°

298

AG C

f,298.15

J. P. Coughlin, 1954 __________ AH° and AG° of oxides

f.T f.T

D. R. Stull and G. C. Sinke, 1956 __ H° -H° , (G° -H° )/T,

T 298.15 T

S° for the elements

T

JANAF Tables (D. R. Stull, ed.)

1959 (continuing) _________ AH° , AG° , S°, log K

f.T f.T T f.T

of light element compounds

R. D. Freeman, 1962 _______________

AH° , (G° -H°

f,298.15 T 298

of sulfides

R. Hultgren and others, 1963 (continuing) ________________ H° -H° , S° -S° ,

T 298.15 T 298.15

(G° -H° )/T of metalT 298.15

lie elements and alloys

D. D. Wagman and others, 1965, 

1966 (continuing) __________ AH° , AG° , S°

f.298.15 f,298.15 298.15

R. A. Robie, 1966 ____________ AH° , -AG° , and

f,298.15 f,298.15

S° for minerals

298.15
SOURCES OF DATA 7

earlier comprehensive summary by Stull and Sinke (1956). For 

compounds we have accepted the high-temperature enthalpy and 

entropy data selected by Kelley (1960) with the addition of data 

which has become available since then. Two important sources of 

data for the heat of formation, AH°f, 298.is, and entropy, S 0 298 .i5, 

were the tables of Robie (1966) and of Wagman and others (1965, 

1966).

Values for AG0 f,m.i5 for the more common aqueous ions, are 

also listed, in order to facilitate calculations of aqueous equilibria. 

The reference state for the free energies of the aqueous ions is 

the hypothetical ideal solution of unit molality. Values for AG° f 

are listed based on the usual convention that AG° f, AH° f, S°,, and 

C° P are 0.00 for aqueous H+ ion in the hypothetical one molal 

ideal solution. A more complete discussion of the conventions 

adopted for tabulating the thermodynamic properties of aqueous 

ions is given by Wagman and others (1965). The molar volumes 

are virtually all from a critical summary by Robie, Bethke, and 

Beardsley (1967).

Although the principal sources of data for AH°, have been 

solution or combustion calorimetry, for many compounds the best 

available data are from solubilities, electrochemical cells, reduction 

equilibrium, or decomposition pressure data. For the simpler 

gases the thermodynamic constants calculated from spectroscopic 

data are usually the most precise.

In order to insure internal consistency in these tables and 

because of the complex nature of many of the reaction schemes 

used to obtain AH° f or AG° f, we have corrected all the older data 

to the values adopted here. For multiple oxide compounds, the 

heats of formation are most commonly measured utilizing the 

binary oxides as reference phases. However, stoichiometric K20 

and Na20 cannot be prepared reproducibily and FeO is thermodynamically unstable. Furthermore, a-A!2 03 , corundum, is insoluble in all common calprimetric solvents. Consequently mixed 

sets of reactants such as the alkali halides, aluminum hydroxide 

(gibbsite), or an element have frequently been used as the reference phases. For example the heat of formation of muscovite 

was determined from the reaction 3Si02 + 3Al(OH) 3 + KCl + 

9.731H2 0 = KAl2 [AlSi3 010 ] (OH) 2 + HCM2.731H20 and by utilizing 

literature data for the heats of formation of the other phases. 

Accordingly any improvement in AH°, of quartz, gibbsite, sylvite, 

or aqueous HCI will alter the heat of formation of muscovite. We 

have accepted the values of Wagman and others (1965, 1966) for
8 THERMODYNAMIC PROPERTIES OF MINERALS

aqueous hydrochloric, sulfuric, and hydrofluoric acids and for 

crystalline PbS04 and Hg2S04 in order to correct the older heat or 

free energy values of the chlorides, sulfates, and alkali-aluminum 

silicates. We have also made a small correction to the enthalpies 

of formation of those sulfides for which AH°, has been obtained 

from hydrogen reduction equilibria.

METHODS OF CALCULATION

Having chosen what we believe are the currently "best available" values for H°T -H0 -^,, S°T -S°298 . 15 , and AH 0 f, 298 ., 5 , we 

have calculated the Gibbs free energy function, and the enthalpy, 

free energy, and equilibrium constant of formation at 100°K 

intervals using the following relations:

GO TJO "LTO TTO 

T Jl 298.15 _ H T Jl 298.15 __« O /-|\

T - T -O T (L)

AH°f,T - AH°,,298 . 15 + A[H°T -H°298 .i5 ] (2)

AG°,. T = AH°,,29,i5 + TA T ~ 298^- (3) 

and

1 T7- AG°f,T,

'-T 4.57562 T 

These values are tabulated in the second section.

A Fortran II source program written for an IBM 7094 computer was used for the above calculations. The essential feature 

of the program is that internally consistent thermodynamic functions can be calculated for several hundred compounds in a single 

run of the computer. This consistency is accomplished by first 

calculating the thermodynamic functions for 50 reference elements 

and holding this data in memory for later computations involving 

substances having these elements as reference states. As new 

thermodynamic data become available, only a minimum number 

of changes in punched cards of the master data deck are needed 

to prepare a completely revised set of internally consistent tables.

The input data supplied to the computer are the identifying 

name of the substance, the entropy and enthalpy at 298.15°K and 

their uncertainties, and the entropy and enthalpy increments, 

S°T -S°298 .,5 and H°T -H°298 . 15 at 100° intervals, together with 

the number of atoms of each element in the chemical formula. 

Auxiliary data such as the melting and boiling points and heats 

of melting and vaporization are also included as input. The pro-
METHODS OF CALCULATION 9

gram computes the formula weight of the compound and values 

for S°T, AH° f, T , AG°,, T, log Kf, T and (G°T -H0298 . 15 )/T at 100° intervals and the uncertainties in the 298.15°K properties.

The algorithms for calculating high-temperature functions 

from discrete 100°-interval data are relatively inefficient computer 

routines, and could be greatly simplified by the use of analytical 

functions (see for example, the JANAF thermochemical tables, 

Stull, 1966). We have purposely avoided the use of simple analytical representations of the high-temperature functions, in that such 

analytical functions are only approximate representations of the 

experimental data. The precision and accuracy of the original 

data are best served by using the graphically smoothed data 

directly.

Although the absolute value of AG° f, T or AH° f, T is rarely known 

to better than ±500 calories these quantities are tabulated to the 

nearest calorie. This procedure is justified because the temperature derivatives of AG0 f, and AH° f,

(dAG° f/dT) p = AS°, (5) 

and

(dAH°f/dT) p = ACP (6)

are calculated from the heat-content data which are known independently of the heat or free energy. The practice of rounding 

tabulated values of AG°f or AH° f on the basis of the uncertainty 

in the absolute value does not utilize the full accuracy of the heatcapacity information and destroys the necessary internal consistency between AH°f.298.i5 and the Gibbs free energy function, 

(eq 1). Furthermore, in many instances the differences between 

AH° f or AG°f for polymorphs are known much more accurately 

from phase diagram or calorimetric investigations than the individual AH°f or AG°f values, so that rounding off again tends to 

obscure small differences of major importance in calculations of 

geological interest.

The uncertainties assigned to the properties apply only to the 

values at 298.15°K and were taken principally from the original 

source of experimental data. By convention the uncertainty 

reported for calorimetric measurements is two standard errors, 

that is,

=2 2J(x,-x) 1/w(w-l) (7)
10 THERMODYNAMIC PROPERTIES OF MINERALS

where x, is the value for an individual measurement, 3c is the 

arithmetic mean of all the measurements, and n is the number of 

observations.

For substances where AH° f, 298.i5 is the directly measured quantity, the free energy was calculated from,

(8) 

and the uncertainty in the free energy was calculated from

(298as) 2 +2 (298^. ) 2 J (9)

where <78 is the uncertainty in the entropy of the substance, the

as are the uncertainties in the entropies of the i reference ele- i

ments, and the n{ are the numbers of each element in the chemical 

formula of the substance. Uncertainties derived in this manner 

were rounded upward to the nearest ten calories, and <TG is therefore greater than <TH by at least 10 cal gfw' 1 .

For substances where aG is less than <rH, the basic quantities 

used in the calculations were AG° f, 298 and <TG derived from electrochemical cell measurements, solubilities, or phase equilibrium 

data. Hence, AH° f,298 . J5 is a more distantly derived quantity having 

a larger uncertainty. For these substances OH was calculated from

(298<78 ) 2 +2(298n1 a8 )

]

The tables in the first section were prepared by standard data 

processing techniques using a Burroughs 280 computer and a 

Photon phototypesetting machine. The tables of thermodynamic 

properties at high temperatures were prepared from a punched 

card deck generated by the IBM computer program described 

above. Note that the functions S°T and (G°T H0 298 .i5)/T are 

tabulated to 0.001 cal deg-1 for the reference elements and to 0.01 

cal deg' 1 for all other substances. Values of the high-temperature 

functions at the transition temperatures were calculated by hand 

and inserted as punched cards into the master card deck. Several 

of the tables in the second section are incomplete due to the lack 

of adequate data on the enthalpies of formation of these substances. The tables are nonetheless included so that when such 

data become available, one may readily calculate the remaining 

functions using equations 2, 3, and 4 given above.
PROPERTIES AT 298.15°K

Name and formula

Silver

Ag

Ag aqueous ion

Std. state, m » 1

Aluminum

Al

Al'H"1" aqueous ion

Std. state, m 1

Arsenic

As

Gold

Au

Boron

B (Rhombohedral)

Barium

Ba

Ba+++ aqueous ion

Std. state, m 1

Beryllium

Be

Bismuth

Bi

Bi aqueous ion

Std. state, m 1

Bromine

Br, (Liquid)

Br" aqueous ion

Std. state, m 1

Bromine

Br.. (Ideal gas)

Graphite

C

Diamond

C

Calcium

Ca

Ca"1"1" aqueous ion

Std. state, m 1

Cadmium

Cd

Cerium

Ce

Cc"1"*"*" aqueous ion

Std. state, m 1

Chlorine

C12 (Ideal gas)

Cl" aqueous ion

Std. state, m » 1

Gram 

formula 

weight

107.870

107.870

26.982

26.982

74.922

196.967,

10.811

137.34

137.34

9.012

208.980

208.980

159.818

79. 909

159.818

12.011

12.011

40.08

40.08

112.40

140.12

140.12

70. 906

35.453

Entropy

S

o 2 9 a .1 s

(cal deg 

gfW')

10.20

± .05

6.77

±.02

8.40

±.20

11.31

± .05

1.403

±.100

16.0

±1.0

2.28

±.02

13.56

± . 10

36.384

± .080

58.647

± .010

1.372

±.005

;568

±.003

9.95

±.10

12.38

± .04

15.3

±2.0

53.288

± .010

Molar 

volume 

(cm:1 )

Elements

10.272

± .002

9.9993

±.0005

12.963

± .0^5

10.215

± .002

4.386

±.007

38.21

± .02

4.880

±.002

21.309

± .Oil

54.58

± .20

24465.0

t 3.4

5.2982

±.0009

3.4166

±.0003

26.19

± .04

13.005

± .003

20.77

± .02

24465.0

± 3.4

AHV, 9S . IS 

(calgfw-')

0

0

0

0

0

0

0

0

0

7387

± 30

0

453

. ±10

0

0

0

0

AG°/.29H.I 5

(cal gfw"')

0

18433

± 50

0

-116000

± 300

0

0

0

0

-134000

± 300

0

0

19800

± 100

0

-24850

± 50

749

±30

0

693

±15

0

-132180

± 200

0

0

-170500

± 300

0

-31372

± 50

Log

Kf.J9H.IS

0.000

-13.512

± .037

.000

85.030

± .220

.000

.000

.000

.000

98.225

± .220

.000

.000

-14.514

± .073

.000

18.216

± .037

-.549

±.022

.000

-.508

±.011

.000

96. 890

± .147

.000

.000

124.980

± .220

.000

22. 996

± .037

References

I ~iO 3 "l os x y ;.

00 < l| I

68 68

158

158

68 148

159

159

68 68

158

68 68

148 148

159

149 149

141

68 68

158 68

68

158

158 148

148

158

158 158 148

148 148

158 148

28

158 158 155

27 56

68 68

141

68 68

68 68

141

158 148

158
I THERMODYNAM1C PROPERTIES OF MINERALS

Name and formula

Cobalt

Co (Hexagonal)

Co aqueous ion

Std. state, m » 1

Chromium

Cr

Copper

Cu

Cu aqueous ion

Std. state, m « 1

Cu aqueous ion

Std. state, m 1

Fluorine

F2 (Ideal gas)

F" aqueous ion

Std. state, m 1

a -Iron

Fe

Fe aqueous ion

Std. state, m » 1

Fe aqueous ion

Std. state, m « 1

Hydrogen

H2 (Ideal gas)

H aqueous ion

Std. state, m « 1

Hafnium

Hf

Mercury

Hg (Liquid)

Hg aqueous ion

Std. state, m » 1

Hg2+* aqueous ion

Std. state, m 1

Iodine

I2 (Crystal)

I" aqueous ion

Std. state, m « 1

Iodine

I2 (Ideal gas)

Potassium

K

K"1" aqueous ion

Std. state, m 1

Lithium

Li

Li aqueous, ion

Std. state, m , 1

Gram 

rormula 

weight

58.933

58.933

51.996

63.54

63.54

63. 54

37.997

18.998

55.847

55. 847

55.847

2.016

1.008

178.49

200.59

200.59

401.18

253.809

126.904

253.809

39.102

39.102

6.939

6.939

Entropy

S

o 

2 9 H .1 5

(cal deggfw."' )

7. 18

±.10

5.65

±.05

7.97

±.04

48.44

± .05

6.52

±.03

31.208

± .010

10.41

± .05

18.17

± .02

27.757

± .040

62.28

± .05

15.48

± .02

6.95

±.04

Molar 

volume 

(cm:1 )

Elements

6.670

±.002

7.231

±.001

7.113

±.003

24465.0

± 3.4

7.092

±.004

24465.0

t 3.4

13.479

± .010

14.822

± .002

51.29

± .06

!4465. 0

± 3.4

45.36

± .09

13.017

± .007

AH°/., 8B .,, 

(cal gfw~' )

0

0

0

0

0

0

0

0

0

14923

± 20

0

0

AG°/.i98.lft

leal gfw "' )

0

-12300

± 200

0

0

12000

± 100

15530

± 50

0

-66640

± 100

0

-20300

± 100

-2520

± 50

0

0

0

0

39380

± 50

36790

± 50

0

-12330

± 50

4627

± 20

0

-67700

± 100

0

-70220

± 50

Log

K,.,,,.,.

0.000

9.016

±. 147

.000

.000

-8.796

± .073

-11.384

± .037

.000

48.848

± .073

.000

14.880

± .073

1.847

±.037

.000

.000

.000

.000

-28.866

± .037

-26.968

± .037

.000

9.038

±.037

-3.392

± .015

.000

49.625

± .073

.000

51.473

± .037

References

* 0~ ° o 5 x

 * X O i

</) -1 -11

68 68

141

68 68

68 68

114

141

141

148 148

158

158

68 68

141

141

158 148

148

158

68 68

158 68

141

141

148 148

158

158

158 158 148

148

68 148

158

113 148

141
PROPERTIES AT 298.15°K

Name and formula

Magnesium

Mg

Mg++ aqueous ion

Std. state, m 1

Manganese

Mn

Mn"*^ aqueous ion

Std. state, m 1

Molybdenum

Mo

Nitrogen

N2 (Ideal gas)

Sodium

Na

Na aqueous ion

Std. state, m « 1

Niobium

Nb

Nickel

Ni

Ni aqueous ion

Std. state, m 1

Oxygen

O2 (Ideal gas)

Phosphorus

P (Red V)

Lead

Pb

Pb aqueous ion

Std. state, m « 1

Platinum

Pt

Orthorhombic sulfur

S

S aqueous ion

Std. state, m 1

Monoclinic sulfur

S

Di-Atomic sulfur

S2 (Ideal gas)

Octa-Atomic sulfur

S 8 (Ideal gas)

Antimony

Sb

Selenium

Se

Silicon

Si

Gram 

formula 

weight

24.312

24.312

54.938

54.938

95.94

28.013

22.990

22.990

92. 906

58.71

58.71

31.999

30.974

207.19

207.19

195.09

32.046

32.046

32.064

64.128

256.512

121.75

78.96

28.086

Entropy 

S° 

(cul deg 

gfw ')

7.81

±.03

7.65

±.02

6.85

±.05

45. 77

± .02

12.24

± .12

8.70

±. 10

7.14

±.02

48.996

± .010

5.45

±.02

15.55

± .10

9.95

±.05

7.60

±.04

7. 78

±.06

54.51

± .10

102.82

± .40

10.92

± .05

10.144

± .050

4.50

±.02

Molar 

volume 

(cm")

Elements

13.996

7.354

±.007

9.387

±.005

24465.0

± 3.4

23.812

± .010

10.828

± .005

6.588

±.003

24465.0

± 3.4

17.2

± .3

18.267

± .006

9.091

±.004

15.511

± .005

16.49

± .08

24465.0

t 3.4

24465.0

± 3.4

18.178

± .009

16.420

± .007

12.056

± .002

(cal gfw" 1 )

0

0

0

0

0

0

0

0

0

0

0

0

80

±20

30840

± 150

24200

±150

0

0

0

(cal gfw"')

. 0

-108900

± 200

0

-53400

± 200

0

0

0

-62539

± 50

0

0

-11100

± 200

0

0

0

-5830

± 50

0

0

20500

± 200

26

±20

19120

± 160

11620

± 200

0

0

0

Log

0. 000

79.826

± .147

.000

39.143

± . 147

.000

.000

.000

45.842

± .037

.000

.000

8.137

±. 147

.000

.000

.000

4.274

±.037

.000

.000

-15.027

± .147

-.019

±.015

-14.015

± .117

-8.518

± .147

.000

.000

.000

\References

"~ ° o" °X 

X 0 K 

-1 < I

68 68

141

143

68 68

141

68 68

158 148

148

112 148

158

158

68 68

68 68

141

158 148

148 148

68 68

159

68 68

158

78

78

158

148

148

158

68

158

158

68

35

148

158

158 148

148 148

158

148 148

158

68

149

68
THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

0-Tin 

Sn (White)

Strontium 

Sr

Sr aqueous ion 

Std. state, m 1

Tellurium 

Te

Thorium 

Th

Titanium 

Ti

Uranium 

U

U aqueous ion 

Std. state, m « 1

U"1"1"1"1" aqueous ion 

Std. state-, m « 1

Vanadium 

V

V++ aqueous ion 

Std. state, m « 1

V 1 ' ' aqueous ion 

Std. state, m * 1

Tungsten (Wolfram) 

W

Zinc 

Zn

Zn"1"1" aqueous ion 

Std. state, m 1

Zirconium 

Zr

Ammonia 

NH, (Weal gas)

U

If

NH^ aqueous ion 

Std. state, m » 1

Methane 

CH4 (Ideal gas)

Cementite 

Fe 3C

Acanthite 

Ag2S III

Realgar 

AsS

Orpiment 

A82 S 3

Bismuth inite 

Bi2 S 3

Gram 

formula 

weight

118.69

87.62

87.62

127.60

232.038

47. 90

238.03

236.03

238.03

50. 942

50. 942

50.942

183.85

65.37

65.37

91.22

17.031 

18.039

16.043

179.552

Entropy 

S° 29B ., S 

(cal deg 

gfw" ')

12.32

± .06

12.5

± .5

11.88

± .10

12.76 

± .20

7.32 

±.02

12.00 

± .03

6.91 

±. 10

7.80 

±.10

9.95 

±.05

9.31 

±.04

45.97 

± .05

44.49 

± .05

24.96 

± .80

Molar 

volume 

(cm3 )

Elements

16.289 

± .005

33.921 

±,.020

20.476 

± .008

19.788 

± .010

10.631 

± .010

12.497 

± .020

8.350 

±.004

9.545 

±.004

9.162 

±.007

14.016 

± .007

24465.0 

3.4

24465.0 

t 3.4

23.23 

± .05

AHY.M,*.,, 

(calgfw" ')

0

0

0

0

0

0

0

0

0

0

-11020 

± 100

-17880 

± 80

5960 

±320

±G°i.-,*« ,r,

(cal gfw ' )

0

0

-133200 

± 200

0

0

0

0

-124400 

± 200

-138400 

± 200

0

54200 

± 200

-60100 

± 200

0

0

-35184 

± 50

0

-3945 

± 110

-18970

t 50

-12127 

± 90

4759 

±410

Log

K, .,.<«.,:,

0.000

.000

97.638 

± .147

.000

.000

.000

.000

91.188 

± .147

101.450 

± .147

.000

-39. 730 

± .147

44.054 

± . 147

.000

.000

25.791 

± .037

.000

2.892 

±.081

13.905 

± .037

8.889 

±.066

-3.488 

± .301

Sulfides, arsenides, tellurides, selenides, and sulphosalts

247.804

106.986

246.035

514.152

34.14 

± .10

15.18 

± .15

39.1

± . 7

47.9 

± .8

34.19 

± .04

 29.80 

± .24

70.51 

± .25

75.52 

± .04

-7731 

± 210

-17050 

± 500

-40400 

± 1000

-33900 

± 250

-9562 

± 200

-16806 

± 510

-40250 

± 1050

-33298 

± 200

7.009 

±.147

12.319 

± .374

29.504 

± . 770

24.408 

± .147

Rel'e

o fl X 

t/) -1

68 

159

68

ences

5 Q 2 i

O >. 

1 X

68

68

141

158 

68

68

68

68

68

68

68

68

141

141

68 68

42

42

68

68

68

68

141

148 

31

148

158 158 148 

148

158

158 158 148

68 162 68 

68

52 47 74 139'

173 158

138 158

138 15
PROPERTIES AT 298.15°K

Name and formula

Oldhamite

CaS

Greennockite

CdS

Covellite

CuS

Chalcocite

Cu 2 S III

Troilite

FeS

Pyrrhotite

F6 .877 S

Pyrite

FeS,

Ferroselite

FeSe 2

Frohbergite

FeTe 2

Hydrogen sulfide

H2 S (Ideal gas)

HS aqueous ion

Std. state, m « 1

Cinnabar

HgS (Red)

Metacinnabar

HgS (Black)

Alabandite

MnS

Molybdenite

MoS2

Millerite

NiS

Galena

PbS

Clausthalite

PbSe

Altaite

PbTe

Cooperite

PtS

Stibnite

Sb 2S 3

Herzenbergite

SnS

Tungstenite

ws2

Sphalerite

ZnS

Wurtzite

ZnS

Gram 

formula 

weight

Entropy

S

o 

298.1.',

(cal deggfw ')

Molar 

volume AH /.29».H

(calgfw' ') (cal gfw ')

Log

KMM.if,

Sulfides, arsenides, tellurides, selenides, and sulphosalts

72. 144

144.464

95.604

159.144

87.911

81.042

119.975

213. 767

311.047

34.080

33.072

232.654

232.654

87.002

160.068

90. 774

239.254

286.15

334.79

227.154

339.692

150.754

247.978

97.434

97.434

13.54

± .30

16.80

± .40

15.93

± .40

28.86

± .50

14.42

± .04

14.53

± .05

12.65

± .03

20. 76

± .06

23.94

± .03

49.16

± .05

19. 72

± .50

23.0

±1.0

18.69

± .40

14.96

± .05

15.80

±1.00

21.84

± .30

24.48

± .50 .

26.26

± .50

13.16

± .03

43.5

± .8

18.36

± .20

22. 7

±2.0

13.77

± .20

16.56

±1.00

27.72

± .09

29.934

± .015

20.42

± .02

27.475

± .016

18.20

± .03

17.58

± .03

23.940

± .007

29.96

± .05

38.43

± .05

24465.0

t 3.4

28.416

± .015

30.169

± .016

21.46

± .01

32.02

± .02

16.89

± .01

31.49

± .01

34.61

± .01

40.60

± .01

22.15

± .01

73.41

± .04

29.01

± .02

32.07

± .02

23.83

± .01

23.846

± .013

-114265

± 510

-35755

± 300

-11610

± 1000

-19148

± 300

-24130

 ± 350

-41000

± 400

-4930

± 150

-13900

± 500

-11170

± 360

-51115

± 200

-73200

± 200

-20284

± 1000

-23353

± 230

-24662

± 530

-16949

± 340

-19700

± 800

-41800

± 1000

-25464

± 350

-71300

± 200

-49750

± 500

-46095

± 200

-113070

± 500

-34807

± 330

-11720

± 1010

-20734

± 340

-24219

± 360

-38296

± 410

-8016

± 160

-2880

± 200

-12096

± 530

-10344

± 200

-52140

± 240

-71086

± 210

-20600

± 1050

-22962

± 200

-24300

± 500

-16600

± 300

-18391

± 810

-41460

± 1010

-24999

± 360

-71210

± 640

-48623

± 510

-45760

± 300

82.882

± .367

25. 514

± .242

8.591

±. 740

15.198

± .249

17. 753

± .264

28.072

± .301

5. 876

±.117

2.111

±.147

8.867

±.389

7.582

±.147

38.220

± .176

52.107

± .154

15.100

± .770

16.832

± .147

17.812

± .367

12.168

± .220

13.481

± .594

30.391

± . 740

18.325

± .264

52.198

± .469

35.642

± .374

33.543

± .220

I

References

i b *. 'i -i . z

78 128

78 2 38

78 38 73

78 20 74

160 127

53

53

52

52

52

158

88

78

78

52

52

173

78

78

78

52

89

78

52

78

132

133 74

2

154 74

158 148

158

73 38

46

2 74

30

38

147

140 74

146 74

92

159

141

159

52

158

133 74

38

38 123

126

2 123
THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Corundum 

A1 2°3

Boehmite 

AIO(OH)

Diaspore 

AIO(OH)

Gibbsite 

A1(OH) 3

Arsenolite 

AS 2°3

Claudetite 

AS 2°3

Boric Oxide 

B2°3

Barium Oxide 

BaO

Bromellite 

BeO

Bismite

Carbon Monoxide 

CO (Ideal gas)

Carbon Dioxide 

CO- (Ideal gas)

6

COl aqueous ion 

Std. state, m 1

HCOo aqueous ion 

Std. state, m » 1

H-CO, un-ionized 

Std. state, m « 1

Lime 

CaO

Portlandite 

Ca(OH) 2

Monteponite 

CdO

Cerianite 

CeO2

Cobalt Oxide 

CoO

Eskolaite 

Cr2°3

Tenorite 

CuO

Cuprite 

Cu2O

Wustite 

Fe.947°

Gram 

formula 

weight

101.961

59.988

59. 988

78.004

197.841

197.841

69.620

153.339

25.012

465.958

28.011

44.010

60.009

61.017

62.025

56.079

74.095

128.399

172.119

74.933

151.990

79.539

143.079

68.887

Entropy

S 0 ,,,,,,.., 

(cal deggfw "' )

Ox 

12.18 

± .03

11.58

± .05

8.43 

±.04

16. 75 

± .10

25.6

± . 5

28.0 

±1.0

12.90 

± .10

16.8

± .3

3.37 

±.02

36.2 

± .5

47.219 

± .010

51.06 

± .01

9.5 

±.5

19.93 

± .10

13.1 

± .3

14.89 

± .02

12.66 

± .08

19.4 

± .3

10.19 

± .05

22.4 

± .4

13.76 

± .10

Molar 

volume 

(cnV1 )

des and hyd 

25.575 

± .007

19.535 

± .020

17. 760 

± .026

31.956 

± .015

51.118 

± .069

47.26 

± .03

27.22 

± .06

25.588 

± .010

8.309 

±.003

49. 73 

± .06

24465.0 

± 3.4

24465.0 

± 3.4

16.764 

± .005

33.056 

± .016

15.585 

± .010

23.853 

± .026

11.64 

± .02

29.090 

± .032

12.22 

± .03

23.437 

± .016

12.04 

± .04

AHV-..!.» I.-, 

(calgfw ')

roxides 

-400400 

± 300

-235500 

± 3500

-306380 

± 300

-157020 

± 400

-156483 

± 300

-303640 

± 400

-139060 

± 700

-143100 

± 150

-137160 

± 300

-26416 

± 20

-94051 

± 30

-151790 

± 300

-235610 

± 450

-61200 

± 200

-260180 

± 350

-57100 

± 300

-272700 

± 400

-37140 

± 300

-40400 

± 1500

-63640 

± 200

(cal gfw' 1 )

-378082 

± 310

-217674 

± 3510

-273486 

± 310

-137731 

± 450

-137910 

± 250

-284729 

± 410

-131994 

± 770

-136121 

± 160

-117955 

± 350

-32781 

± 30

-94257 

± 40

-126170 

± 150

-140260

± 150

-148940 

± 50

-144352

± 340

-214673 

± 460

-54111 

± 220

-245450 

± 700

-51430 

± 310

-253203 

± 420

-30498 

± 310

-35022 

± 1510

-58599 

± 210

Log

K,., , .,,

277.141 

± .227

159.559 

± 2.573

200.470 

± .227

100.959 

± .330

101.091 

± .183

208.712 

± .301

96. 754 

± .564

99. 779 

± .117

86.463 

± .257

24.029 

± .022

69.092 

± .029

92.485 

± .110

102,813 

± .110

109.176 

± .037

105.813

± .249

157.359 

± .337

39.664 

± .161

179.920 

± .513

37.699 

± .227

185.603 

± .308

22.356 

± .227

25.672 

±1.107

42. 954 

± .154

i

lefercnc

'.: o '-'

x b

78 103 

39

78 141

r

X

39

74

86 

78

78 12 74

158 158

158 158

148 148 

159 159

78 108

78 22 

148 66

158 105 

158

158 158

158 158 

58

158

158

158

78 65

78 54 

55

148

74

157

74

148

148

74

74

78 102

179 64

78 18

78 102

78 15

78 22

78 70 

148 148

84

74

74

74

74

74
PROPERTIES AT 298.15°K

Name and formula

Ferrous Oxide

FeO (Fictive)

Hematite

Fe2°3

Magnetite

Fe 3°4

Goethite

o-FeO(OH)

Germanium Dioxide

GeO2 (Quartz form)

Water

H2O (Liquid)

OH" aqueous ion

Std. state, m » 1

Steam

H 20 (Ideal gas)

Ice

HO (Metastable)

Hafnia

Hf02

Montroydite

HgO

Potassium Oxide

K20

Lithium Oxide

Li20

Periclase

MgO

Brucite

Mg(OH) 2

Manganosite

MnO

Pyrolusite

Mn02

Bixbyite

Mn2°3

Hausmanite

Mn3°4

Molybdite

MoO3

Nitrogen Dioxide

NO2 (Ideal gas)

NOj aqueous ion

Std. state, m « 1

Sodium Oxide

Na2°

Bunsenite

NiO

Gram 

formula 

weight

71.846

159.692

231.539

88.854

104.589

18.015

17.007

18.015

18.015

210.489

216.589

94.203

29.877

40.311

58.327

70.937

86. 937

157.874

228.812

143.938

46.005

62.005

61.979

74. 709

Entropy

S

o 

298.1 5

(cal deggfW')

Molar 

volume 

(cm")

AH 0 ,.,.,.,, 

(cal gfw" 1 )

Oxides and hydroxides

14.52

± .40

20.89

± .05

36.03

± .10

13.21

± .10

16.71

± .03

45.104

± .010

10.68

± .10

14. 18

± .10

16.80

± .08

22.5

±1.5

8.98

±.02

6.44

±.04

15.09

± .05

14.27

± .10

12.68

± .10

26.40

± .50

36.8

±1.0

18.58

± .10

57.35

± .02

17.99

± .20

9.08

±.04

12.00

± .05

30.274

± .012

44.524

± .008

20.82

± .04

24.44

± .02

18.069

± .003

24465.0

± 3.4

19.64

± .01

20.823

± .008

19.32

± .02

40.38

± .20

14.76

± .01

11.248

± .004

24.63

± .07

13.221

± .004

16.61

± .02

31.37

± .05

46.95

± .06

30.56

± .04

24465.0

t 3.4

10.97

± .02

-65020

± 500

-197300

± 300

-267400

± 500

-133750

± 250

-129080

± 130

-68315

± 10

-57796

± 10

-66879

± 50

-266050

± 300

-21711

± 90

-86800

± 500

-143100

± 500

-143800

± 100

-221200

± 700

-92050

± 110

-124450

± 200

-228700

± 500

-331400

± 400

-178160

± 100

7930

±100

-99400

± 1500

-57300

± 100

(cal gfw "')

-60097

± 600

-177728

± 310

-243094

± 510

-116195

± 140

-56688

± 20

-37594

± 10

-54635

± 20

-53455

± 60

-252566

± 310

-13998

± 100

-76974

± 680

-134329

± 510

-136087

± 110

-199460

± 730

-86720

± 120

-111342

± 210

-210097

± 530

-306313

± 500

-159745

± 110

12262

± 110

-26610

± 200

-90161

± 1510

-50574

± 110

Log

K/.29H.I 5

44.052

± .440

130.278

± .227

178.193

± .374

85.173

± .103

41.553

± .015

27.557

± .007

40.048

± .015

39.184

± .044

185.136

± .227

10.261

± .073

56.423

± .498

98.466

± .374

99. 754

± .081

146.208

± .535

63. 567

± .088

81.616

± .154

154.005

± .389

224. 533

± .367

117.096

± .081

-8.988

± .081

19.506

± .147

66.090

±1.107

37.072

± .081

tleferenc

°x b

148 148

51 26

cs

^.

148

74

148 148

52 70

148

10

74

78 109

158 158

158

78

78

78

148

148

14

120

78

78

78

78

118

78

158

50

78

158

158

141

22

22

148

148

22

148

150

63

22

22

118

22

22

103

158

158

74

148

74

74

148

148

157

74

74

74

74

74

74

148

22 148

18 74
THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Phosphorus Pentoxide 

P2°5 (Dimeric )

PO."" aqueous ion 

Std. state, m » 1

Litharge 

PbO (Red)

Massicot 

PbO (Yellow)

Minium 

Pb3°4

Sulfur Dioxide 

SO, (Ideal gas)

Sulfur Trioxide 

S03 (Ideal gas)

SO. aqueous ion 

Std; state, m 1

SO"" aqueous ion 

Std. state, m « 1

Valentioite 

Sb2°3

Scandium Sesquioxide 

SC 2°3

Silicon Monoxide 

SiO (Ideal gas)

a- quartz 

Si02

H SiO un- ionized 

Std. state, m » 1

o-Cristobalite 

Si02

o-Tridymite 

Si°2

Coesite 

Si02

Stishovite 

Si02

Silica Glass 

Si02

Cassiterite 

Sn02

Strontium Oxide 

SrO

Tellurite 

Te02

Thorianite 

Th02

Rutile 

Ti02

Gram 

'ormula 

weight

283.889

94.971

223.189

223.189

685.568

64.063

80. 062

80.062

96.062

291.498

137.910

44.085

60.085

78. 100

60.085

60.085

60.085

60.085

60.085

150.689

103.619

159.599

264.037

79.899

Entropy

S

o 

298.15

(cal deggfw-')

Oxi

54. 70 

± .10

15.6

± .2

16.1

± .2

50.5 

±1.5

59. 30 

± .10

61.34 

± .20

29.4 

± .6

18.4

± .1

50. 55 

± .20

9.88 

±.02

10.38 

± .02

10.50 

± .10

9.65 

±.10

6.64 

±.10

11.33 

± .05

12.5 

± .3

13.0 

± .2

16.8 

±1.0

15.59 

± .05

12.04 

* .04

Molar 

volume 

(cma )

des and hyd 

118.8 

± .4

23.91 

± .05

23.15 

± .03

76.81 

± .09

24465.0 

± 3.4

24465.0 

± 3.4

50.01 

± .05

35.92 

± .05

24465.0 

t 3.4

22.688 

± .001

25. 739 

± .033

26.53 

± ,20

20.641 

± .036

14.014 

± .009

27.27 

± .10

21.55 

± .03

20.69 

± .01

27. 75 

± .02

26.373 

± .007 .

18.820 

± .008

AH°/.298.I5

(cal gfw" 1 )

"oxides 

-713200 

± 400

-52410 

± 160

-52070 

± 170

-171700 

± 2000

-70944 

± 50

-94580 

± 170

-169350 

± 700

-447280 

± 230

-23800 

± 1000

-217650 

± 400

-216930 

± 450

-216895 

± 570

-216440 

± 500

-205860 

± 500

-215870 

± 500

-138820 

± 150

-144440 

± 400

-77740 

± 770

-293200 

± 400

-225760 

± 100

AG°/.298.15

(cal gfw" 1 )

-649968 

± 410

-244000 

300

-45121 

± 180

-44930 

± 180

-143632 

± 2060

-71750 

± 60

-88690 

± 190

-116300 

± 300

-117970 

± 100

-149692 

± 730

-425916 

± 250

-30226 

± 1010

-204646 , 

± 410

-258000 

± 300

-204075 

± 460

-204076 

± 580

-203367 

± 510

-191890 

t 510

-203298 

± 510

-124266 

± 180

-137285 

± 440

-64600 

± 700

-279436 

± 410

-212559 

± 110

Log

K^,298.15

476.439 

± .301

178.857 

± .220

33.075 

± .132

32.935 

± .132

105.285 

± 1.510

52.594 

± .044

65.011 

± .139

85.250 

± .220

86.474 

± .073

109.727 

± .535

312.205 

± .183

22.156 

± .740

150.009 

± .301

189.119 

± .220

149.591 

± .337

149.592 

± .425

149.072 

± . 3.74

140.659 

± .374

149.021 

± .374

91.089 

± .132

100.633 

± .323

47.353 

± .513

204.832 

± .301

155.810 

± .081

1 

/)

158

78 

159

78 

159

159 

78

158 

34

158

158 

78

176

158

178

159

178 

69

131

61 

131

61

References M* I 0 \ i 

<3 <J| I

158 148

158

148 74 

22

148 148 

22

159 148

158 148

158 148

158

158

107 158

106

158 148

180 74 

49

95 74 

36

95 74

61 163

61 163

161 180 74 

178 95

7R 22 74

78 108 74

78 22

78 22 156

78 111 74
PROPERTIES AT 298.15°K

Name and formula

Anatase

Ti02

Uraninite

U02

Karelianite

V2°3

Tungsten Trioxide

wo3

Zincite

ZnO

Baddeleyite

Zr02

Chrysoberyl

BeA12°4

Perovskite

CaTiO3

Hercynite

FeAl204

Chromite

FeCr204

Ilmenite

FeTiO, 

o

Titanomagnetite

Fe 2Ti04

Pseudobrookite

Fe2Ti05

Spinel

MgAl204

Picrochromite

MgCr204

Magnesioferrite

MgFe 204

Geikielite

MgTi03

Trevorite

NiFe 204

Bromargyrite

AgBr

Chlorargyrite

AgCl

Hydrophilite

CaCl 2

Gram 

formula 

weight

79. 899

270.029

149.882

231.848

81.369

123.219

126.973

135.978

173.808

223.837

151. 745

223. 592

239.591

142.273

192.302

200.004

120.210

234. 402

187.779

143.323

110.986

Entropy

S 2 9 8 .1 »

(cal deggfW)

Molar 

volume 

(cm:l )

AH 0/.,,,.,,

(cal gfw"1 )

Oxides and hydroxides

11.93

± .07

18.63

± .10

23.53

± .30

18.14

± .12

. 10.43

± .10

12.04

± .08

15.58

± .03

22.4

± .1

25.4

± .2

34.90

± .40

25.3

± .3

40.36

± .60

37.40

± .30

19.26

± .10

25.3

± .2

29.60

± .20

17.82

± .10

31.5

± .2

25.60

± .10

23.00

± .10

27.2

± .3

20.52

± .03

24.618

± .014

29.85

± .03

31.61

± .10

14.338

± .005

21.15

± .01

Multiple ox

34.320

± .023

33.626

± .010

40.75

± .05

44.01

± .10

31.69

± .08

46.82

± .05

54.53

± .05

39.71

± .03

43.56

± .05

44.57

± .05

30.86

± .07

43.65

± .05

Halides

28.991

± »008

25.727

± .007

50.75

± .10

-225860

± 110

-259200

± 600

-291290

± 380

. -201460

± 200

-83250

± 200

-262300

± 400

ides

-396900

± 410

-295560

± 380

-552800

± 500

-341720

± 600

-375900

± 270

-23990

± 300

-30370

± 300

-190000

± 150

(cal gfw ' )

-212626

± 120

-246569

± 610

-272273

± 400

-182631

± 210

-76089

± 210

-248505

± 410

-376517

± 420

-277065

± 390

-522961

± 510

-315113

± 700

-354790

± 280

-23158

± 310

-26242

± 310

-179255

± 180

Log

K/. a 9 H.I S

155.859

t .088

180. 740

± .447

199.581

± .293

133.872

± .154

55.775

± .154

182.159

± .301

275.994

± .308

203.094

± .286

383.340

± .374

230. 984

± .513

260.068

'± .205

16.975

± .227

19.236

± .227

131.397

± .132

CO

leferenc

i b < <

78 162

78 22

78 110

90 170

.78 22

148 67

148

es

I

74

74

74

90

74

74

40

78

78

78

78

78

78

78

78

78

78

78

78

158

78

158

78

80

151

80

74

74

74

74

74

115 148

151

93

80

158

158

101

141

74

74

74

74

74

74
THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Lawrencite

FeCl2

Molysite

FeCl3

Hydrogen Chloride

HC1 (Ideal gas)

Calomel

HgCl

Sylvite

KC1

Chloromagnesite

MgCl2

Scacchite

MnCl

Salammoniac

NH4C1

Halite

NaCl

Cotunnite

PbCl2

Fluorite

CaF2

Sellaite

MgF«

Villiaumite

NaF

Cryolite

Na A IF 

o 6

lodargyrite

Agl

Coccinite

HgI2

Witherite

BaC0 3

Aragonite

CaCO,

Calcite

CaCO3

Dolomite

CaMg(C03 ) 2

Otavite

CdCO3

Malachite

Cu2 (OH) 2C03

Azurite

Cu3 (OH) 2 (C03 )2

Gram 

xirmula 

weight

126.753

162.206

36.461

236.043

74.555

"95.218

125.844

53.492

58.443

278.096

78.077

62.309

41.988

209.941

234.774

454.399

197.349

100.089

100.089

184.411

172.409

221.104

344.653

Entropy

S

o 

29815

(cal deggfw")

28.19

± .50

34.02

± .60

44.646

± .010

23.08

± .30

19. 73

± .04

21.42

± .20

28.26

± .05

22. 7

±1.0

17.24

± .05

32.5

± .5

16.46

± .08

13.68

± .07

12.26

± .07

56.98

± .40

27.60

± .40

42.4

±1.5

26.8

± .5

21. 18

± .30

22.15

± .20

37.09

± .07

23.3

± .6

Molar 

volume

(cal gfw"1 )

Halides

39.46 -81700

± .21

57.86

± .10

24465.0

t 3.4

32.939

± .075

37.524

± .004

40.81

± .10

42.11

± .17

35.06

± .03

27.015

± .003

47.09

± .10

24. 542

± .007

19.61

± .01

14.984

± .005

70.81

± .20

41.301

± .040

71.84

± .10

± 120

-95460

± 200

-22062

± 150

-31695

± 300

-104370

± 200

-153350

± 110

-115038

± 200

-75180

± 200

-98260

± 300

-86200

± 70

-290300

± 400

-268700

± 300

-137027

± 200

-790000

± 2000

-14780

± 400

-25200

± 400

Carbonates

45.81

± .06

34. 15

± .05

36. 934

± .015

64.34

± .03

34.300

± .015

54.86

± .08

91.01

± .13

-297460

± 870

-288651

± 340

-288592

± 320

-557613

± 520

-179030

± 600

(cal gfw ')

-72273

± 200

-79827

± 360

-22777

± 160

-25215

± 320

-97693

± 210

-141521

± 130

-105295

± 210

-48572

± 360

-91807

± 310

-75366

± 170

-277799

± 410

-256008

± 310

-129812

± 210

-750695

± 2010

-15830

± 420

-24148

± 610

-278359

± 930

-269678

± 350

-269908

± 330

-518734

± 530

-159964

± 630

-216440

± 500

-343730

± 500

Log

52.977

± .147

58.515

± .264

16.696

± .117

18.483

± .235

71.611

± .154

1-03. 738

± .095

77.183

± .154

35.604

± .264

67.296

± .22-7

55.245

± .125

203.632

± .301

187.659

± .227

95.155

± .154

550.274

± 1.473

11.604

± .308

17. 701

± .447

204.042

± .682

197.679

± .257

197.848

± .242

380.242

± .389

117.257

± .462

158.655

± .367

251.961

± .367

1 

/>

References x^JN < <l X

148 94 148

148

158

148

78

148

78

78

21

148

158

148

78

159

78

78

78

148

78

78

158

78

148

94 148

148

158 148

158

148 148

141 74

148

94 74

158 148

148

148 148

148 74

159

141 74

142 74

148

23 148

23 37

148

158 74

148 74

141

78 4 74

98

78 100 74

43

78 100 74

43

144 144 144

78 141

76

42

42
PROPERTIES AT 298.15°K

Name and formula

Siderite

FeC03

Magnesite 

MgC03

Huntite

Mg 3Ca(C03 )4

Rhodochrosite

MnCO3

Cerussite

PbC03

Strontianite

SrC03

Smithsonite

ZnC03

Nitrobarite

BaNO3

Niter

KN03

Ammonia- Niter

NH4N03

Soda Niter

NaNO3

Barite

BaS04

Anhydrite 

CaS04

Gypsum 

CaSO4-2H2O

Chalcanthite

CuSCy 5H2O

Brochantite

Cu4S04 (OH) g

Szomolnokite

FeS04 - H20

Melanterite

FeSO4 - 7H2O

Sulfuric Acid

H2S04 (Liquid)

Arcanite

K2S04

Alunite

Gram 

formula 

weight

115.856

84.321

353.053

114.947

267.199

147.629

125.379

261.350

101.107

80.043

84. 995

233.402

136.142

172.172

249.678

452.266

169.924

278.016

98.078

174.266

828.440

Entropy

S

o 

2 9 8 .1 .1

(cal deggfw" 1 )

25.1

± .6

15.7 

± .2

67.0

±1.5

23.90

± .50

31.3

± .8

23.2

± .4

19.70

± .30

51.14

± .20

31.81

± .15

36.11

± .05

27.85

± .10

Molar 

volume 

(cm3 )

AH /.298.15

(cal gfw" 1 )

Carbonates

29. 37fl

± .014

28.018 

± .013

122.58

± .10

31.073

± .014

40.59

± .06

39.01

± .06

28.275

± .013

Nitrates

80.58

± .08

48.04

± .06

46.49

± .10

37.60

± .02

-177812

± 540

-266081

± 320

-1086960

± 1200

-212521

± 290

-167951

± 300

-294581

± 650

-194200

± 700

-237060

± 500

-117760

± 300

-87373

± 200

-111540

± 300

Sulfates and borates

31.6

± .2

25.5 

± .4

46.36

± .30

73.0

±1.0

97.8

± .3

37.50

± .05

42.0

± .4

156.8

± .9

52.10

± .06

45.94

± .06

74.69 

± .22

108.97

± .22

113.6

± .2

55.9

± .4

146.54

± .25

53.57

± .07

65.50

± .07

293.6

± .4

-352131

± 2030

-343321 

± 1010

-483981 

± 1110

-544340

± 800

-297305

± 130

-720470

± 150

-194548

± 100

-343481

± 620

AG°/.29S.I 5

(calgfw' 1 )

-161030

± 500

-246112

± 330

-1007700

± 1000

-195045

± 330

-150325

± 3.60

-275450

± 670

-174786

± 710

-190066

± 590

-93893

± 310

-43971 .

± 210

-87459

± 310

-325300

± 2000

-316475 

± 1000

-430137 

± 1100

-449203

± 860

-435310

± 600

-599942

± 300

-164942

± 110

-315290

± 600

Log

K/.298.I »

118.038

± .367

180.405 

± .242

738.663

± . 733

142. 972

± .242

110.191

± .264

201.910

± .491

128.121

± .520

139.322

± .432

68.825

± .227

32.232

± .154

64.109

± .227

238.451

± 1.466

231. 982 

± .733

315.299 

± .806

329.274

± .630

319.091

± .440

439. 769

± .220

120.906

± .081

231.114

± 440

Referenc

1 ~ o "

0; x b

in <1 1

133' 141

76

78 133 

99

132 43

122 133

78 4

78 4

98

78 141

43

78 141

78 141

158 158

78 141

78 135

73

78 135 

29

141 135 

73

141 3

73

15

1

78 1

45 158

158 48

78 135

73

78

:s

X

X

74

74

74

74

74

74

74

74

74

74

74
THERIWODYNAMIC PROPERTIES OF MINERALS

Name and formula

Epsomite

MgSO4 - 7H20

Thenardite

Na 2S04

Mirabilite

Na2S04 -10H2 0

Mascagnite

(NH.).SO. 42 4

Retgersite

o-NiSO4 '6H2O

Morenosite

NiSO4 - 7H20

Anglesite

PbS04

Celestite

SrS04

Zinkosite

ZnSO4

Bianchite

ZnSO4 -6H2O

Goslarite

ZnS04- 7H20

Borax

Na 2B407'10H20

Berlinite

A1P04

Whitlockite

Ca 3 (P04 ) 2

Hydroxylapatite

Ca5 (P04 ) 3OH

Fluorapatite

Ca5 (P04 ) 3 F

Strengite

Fe(PO4 )-2H2O

Powellite

CaMoO4

Wulfenite

PbMoO4

Scheelite

CaW04

Ferberite

FeWO. 4

Stolzite

PbWO4

Gram 

formula 

weight

246.481

142.041

322.195

132.139

262.864

280.879

303.252

183.682

161.432

269.524

287.539

381.373

121.953

310.183

502.322

504.313

186.849

200.018

367.128

287.928

303.695

455.038

Entropy

S

o 

298.1 5

(cal deggfw ')

Molar 

volume

(calgfw ')

Sulfates and borates

35.73

± .07

141.46

± .15

52.6

± .3

79.94

± .10

90.57

± .10

35.51

± .07

28.2

±1.0

26.4

± .3

86.9

± .3

92.9

± .3

Phosphates,

21.70

± .05

57.58

± .20

93.30

± .40

92. 70

± .40

40.93

± .30

29.3

± .2

39.7

± .5

30.2

± .2

31.5

± .4

40.2

± .5

146.83

± .23

53.33

± .06

219.8

± .4

- 74.68

± .09

126.59

± .16

143.82

± .50

47.95

± .06

46.25

± .06

41.57

± .07

130.2

± .5

145.79

± .11

222.66

± .17

-808700

± 2000

-331528

510

-1034237

. ± 950

-282230

± 300

-219891

± 260

-346646

± 1700

-233600

± 200

-1497200

± 2000

(cal gfw ')

-303400

500

-871545

± 800

-215565

± 320

-194360

± 250

-319830

± 1500

-207022

± 230

molybdates, and tungstates

46.58

± .10

97.62

± .09

159.6

± .2

157.56

± .12

64.54

± .30.

47.00

± .09

53.86

± .10

47.05

± .09

40.38

± .05

54.10

± .06

-414400

± 500

-986200

± 500

-3215000

± 3000

-451500

± 1000

-369500

± 300

-402410

± 500

-388010

± . 510

-932785

± 520

-3123504

± 3010

-397700

± 1010

-344011

± 310

-376906

± 510

Log

K/.29S.1 S

222.398

± .367

638.859

± .586

158.013

± .235

142.470

± .183

234.441

± 1.100

151.751

± .169

284.419

± .374

683.749

± .381

2289.588

± 2.206

291.522

± .740

252.167

± .227

276.279

± .374

References

- "1 S 

5 SI 0 "

I 2 o 21 I

0S I 0 i.

in 1 1| I

141

78 135 74

73

19 19

141

78 158 74

158

145

145

41 159 74

78 135

73

170 3 74

135

78

78

141

32 159

78 141 74

78 97 74

78 74

33 33

175 7

3

85 7

171

3
PROPERTIES AT 298. 15°K

Name and formula

Kyanite

A1 2Si°5

Andalusite

Al 2Si0 5

Sillimanite

A12Si°5

3.2 Mullite

3Al 203 '2Si02

Phenacite

Be 2Si04

Larnite

0-Ca2Si04

Calcium Olivine

Y -Ca 2Si04

Gehlenite

Ca 2Al2Si0 7

Grossular

Ca 3A1 2Si3°12

Lawsonite

CaAl 2Si207 (OH) 2-H20

Monticellite

CaMgSiO4

Merwinite

Ca 3Mg(Si04 ) 2

Akermanite

Ca 2 MgSi207

Sphene

CaTiSiOj

Fayalite

Fe 2Si04

Forsterite

Mg2Si04

Cordierite

Mg 2Al 3 (AlSi C- )

Tephroite

Mn 2 Si04

Willemite

Zn2Si04

Zircon

ZrSi04

Wollastonite

CaSiOj

Pseudowollastonite

CaSiO,

0

Ca-Al Pyroxene

CaAl 2SiOg

Gram 

formula 

weight

162.046

162.046

162.046

426.053

110.108

172.244

172.244

274.205

450.454

314.241

156.476

328. 719

272.640

196.063

203.778

140.708

584.969

201.960

222.824

183.304

116. 164

116.164

218.125

Entropy

S

o 

29H.I.1

(cal deg » 

gfw"')

Molar 

volume 

(cm'1 )

AH 0 ,.,,,,.,. 

(cal gfw ') (cal gfw" 1 )

Ortho and ring structure silicates

20.02 .

± .08

22.28

± .10

22.97

± .10

64.43 .

±1.00

15.37

± .08

30.50

± .20

28.80

± .20

47.4

± .4

57.7

±1.3

56.79

± .50

24.5

±1.0

60.5

± .5

50.03

± .50

30.88

± .20

35.45

± .40

22. 75

± .20

97.33

± .90

39.00

±1.00

31.40

± ..20

20.08

± .30

44.09

± .07

51.53

± .04

49.90

± .04

134.55

± .07

37.19

± .04

51.60

± .27

59.11

± .18

90.24

± .09

125.30

± .03

101.32

± .12

51.36

± .07

104.4

± 1.5

92.81

± .09

55.65

± .17

46.39

± .09

43.79

± .03

233.22

± .13

48.61

± .07

52.42

± .08

39.26

± .07

-619930

± 540

-619390

± 710

-618650

± 710

-1629543

± 1700

-551420

± 770

-553973

± 940

-952740

± 960

-1588393

± 1830

-1161315

± 1090

-540800

± 790

-1091490

± 1270

-926510

± 1070

-622050

± 570

-353544

± 700

-520370

± 520

-413520

± 760

-391140

± 590

-584000

± 550

-584134

± 720

-583600

± 720

-1539002

± 1730

-524022

± 780

-526069

± 950

-904432

± 970

-1500986

± 1880

-1076910

± 1110

-512252

± 850

-1037184

± 1290

-879353

± 1090

-588246

± 580

-329668

± 720

-491938

± 530

-390028

± 820

-364011

± 600

Chain and band structure silicates

19.60

± .20

20.90

± .20

34.6

± .8

39.93

± .10

40.08

± .14

63.50

± .09

-390640

± 870

-389070

± 620

-786984

± 660

-370313

± 880

-369031

± 630

-745130

± 710.

Log

Kf.JKll.lfi

428.083

± .403

428.181

± .528

427.790

± .528

1128.118

± 1.268

384.118

± .572 .

385.619

± .696

662.966

± .711

1100.251

± 1.378

789. 396

± .814

375.490

± .623

760.276

± .946

644.583

± .799

431.196

± .425

241.653

± .528

360.600

± .389

285.898

± .601

266.827

± .440

271.446

± .645

270.507

± .462

546.194

± .520

1 leferenc

i b

78 59

60

78 60

164

78 60

164

60 60

:s

X 

X

121

121

121

124

124 164

78

78 81

78 81

172

129

8

57 57

87

132

172

172

78

151

78

78

172

78

78

148

78

78

78

57

6

117

117

75

116

75

152

82

151

153

74

74

122

163

122

122

74

74

74

122

71 104

81

152

16

75

74

74

74

57 163
THERMODYNAMIC PROPERTIES OF MINERALS

Name and formula

Diopside

CaMg(Si03 ) 2

Spodumene

LiAl(Si03 ) 2

Clinoenstatite

MgSiO3

Rhodonite

MnSiOg

Jadeite

NaAl(Si03 ) 2

Tremolite

Ca2 Mg5tSi8022l<OH) 2

Anorthite

CaAl2Si208

Hexagonal Anorthite

CaAl2Si2Og

Leonhardite

Ca A 1 <5i O . 7H f~\

2 4 8 24 2

Microcline

KAlSi,O0 J o

High Sanidine

KAlSi-0.

 3 o

Adularia

KAlSi 0O.

0 O

KAlSi O. Glass

KAlSi,o"

0 o

Kaliophilite

KAlSiO4

Leucite

KAlSi 206

3-Spodumene

LiAl(Si0 3 ) 2

Eucryptite

LiAlSiO4

Low Albite

NaAlSi,0. 

o o

High Albite (Analbite)

NaAlSi,OB

O O

NaAlSigO. Glass

NaAlSi,o"

J O

Nepheline

NaAlSiO4

Nepheline a. 8.

Na gK 2AlSiO4

Analcime

NaAlSi,pg.H20

Gram 

formula 

weight

216. 560

186.090

100.396

131.022

202.140

812.410

278.210

278.210

922.867

278.337

278.337

278.337

278.337

158.167

218.252

186.090

126.004

262.224

262.224

262.224

142.055

145.277

220.155

Entropy

S

o 

 2 9 « .1 5

(cal deggfw ')

Molar 

volume AHVsmi.is 

(cal gfw" 1 ) (cal gfw" 1 )

Chain and band structure silicates

34.20

± .20

16.22

± .10

24.50

± .50

31.90

± .30

131.19

± .30

Frame

48.45

± .30

45.84

± .30

220.4

±2.6

52.47

± .80

56.94

±1.00

55.99

±1.00

63.28

±1.00

31.85

± .30

44.05

± .40

50.20

± .40

54.67

± .45

62.95

± .60

29. 72

± .30

56.03

± .60

66.09

± .10

58.37

± .02

31.47

± .05

35.16

± .02

60.40

± .10

272.92

± .73

-767390

± 2180

-727735

± 820

-370140

± 440

-315620

± 470

-719871

± 1000

-2952935

± 4140

-725784

± 2190

-349394

± 450

-297390

± 500

-677206

± 1010

-2779137

± 4150

work structure silicates

100.79

± .05

99.85

± .79

404.4

±2.0

108. 72

± .10

109.05

± .10

108.29

± .15

116.5

± 1.0

59.89

' ± .05

88.39

± .05

78.22

± .02

100.07

± .13

100.43

± .09

110.09

± .19

54.16

± .06

97.49

± .10

-1009300

± 1150

-1004410

± 1700

-3397535

± 2500

-946265

± 930

-944378

± 930

-945000

± 1200

-933276

± 910

-503926

± 420

-721650

± 750

-720995

± 810

-505126

± 550

-937146

± 740

-934513

± 770

-922609

± 760

-497029

± 1000

-500993

± 450

-786341

± 860

-955626

± 1160

-949958

± 1710

-3146948

± 2700

-892817

± 970

-892263

± 980

-892602

± 1240

-883051

± 960

-476230

± 430

-681642

± 760

-883988

± 760

-882687

± 790

-873252

± 790

-469664

± 1010

-734262

± 880

Log

532.014

± 1.605

256.112

± .330

217.993

± .367

496.405

± . 740

2037.160

± 3.042

700.492

± .850

696.337

± 1.253

2306.773

± 1.979

654.452

± . 711

654.046

± .718

654.294

± .909

647.293

± .704

349. 086

± .315

499.657

± .557

647.980

± .557

647.026

± .579

640.110

± .579

344.273

± .740

538.228

± .645

Rel'erenc

of' T O

78 95

116

13

78 153

132 82

78 165

96

137 169

78 6

72

87 6

87 6

167 166

79 168

I

I

74

74

74

74

132

74

167

167 166 167

168

167 44

79

167 166

166

78 13

78 13

13

13

78 166

79

168 166

167

166 166

78 165

11

78 6

74

74

74

62

74

74
PROPERTIES AT 298.15°K

Name and formula

Die kite

Al 2Si205 (OH) 4

Kaolinite

A1 2Si2°5(OH) 4

Halloysite

A1 2Si2°5(OH) 4

Muscovite

KAl 2 [AlSi 301Q](OH) 2

Phlogopite

KMg 3 [AlSi 301Q](OH) 2

Fluor- Phlogopite

KMg3 [AlSi 3010]F2

Talc

Mg3Si4010(OH) 2

Chrysotile

Mg3 [Si 205 ](OH) 4

Gram 

formula 

weight

258.161

258.161

258.161

398.313

417.286

421.268

379.289

277.134

Entropy

S°298.IS

(cal deggfw ')

Molar 

volume AH 0 ,., 9fl ,A 

(cal gfw" 1 )

Sheet structure silicates

47.10

± .30

48.53

± .30

48.6

± .3

69.0

± . 7

76.4

±1.0

75.90

± .50

62.34

± .15

99.30

± .07

99. 52

± .26

99.3

±1.0

140.71

.18

149.91

± .36

146.37

± .18

136.25

± .26

108.5

± .6

-979165

± 900

-979465

± 950

-974995

± 900

-1421180

± 1300

-1522020

± 1200

-1415205

± 1710

-1043180

± 1000

AG°/.;l tin. IS

(cal gfw"1 )

-902142

± 910

-902868

± 960

-898419

± 910

-1330103

± 1320

-1439522

± 1210

-1324486

± 1720

Log

K/.29M.I -,

661.287

± .667

661.819

± . 704

658.558

± .667

974.991

± .968

1055.197

± .887

970.873

± 1.261

References

7 - S o~ i

O f; °r b >- t/i < < i

86 12

86 12

91

86 12

177 9 119

125

132

.78 77 74

137 8 137

137

83
26 THERMODYNAMIC PROPERTIES OF MINERALS

SILVER (REFERENCE STATE) GRAM FORMULA WEIGHT 107.870

Ag: Face-centered cubic crystals 298.15° to melting point 1234°K. 

Liquid 1234° to 2000°K.

T C II D U .U i cnr« n n 

T 298

OEG K

298.15

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1234

1234

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OP

H -H 

298 0

0.625

1.245

1.885

2.535

3.195

3.880

4.585

5.310

6.060

6.315

9.170

9.650

10.380

11.110

11.840

12.570

13.300

14.030

14.760

POINT 

FUSION

S

T

f 1* _LJ 1 /T 16 n i ft 

T 298

(CAL/DEG-GFW)

10.200

0.050

12.010

13.390

14.550

15.560

16.440

17.250

17.990

18.680

19.330

19.540

21.850

22.230

22.770

23.270

23.750

24.190

24.610

25.000

25.380

1234 

2.855 

1.3730

10.2CO

0.050

10.447

10.9CO

11.408

11.939

12.446

12.939

13.405

13.853

14.280

14.420

14.420

14.807

15.356

15.863

16.350

16.796

17.221

17.616

18.0CO

DBG K 

KCAL 

KCAL

FORMATION FROM

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

2437 

60.780 

0.24551

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

68

158

COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 27

ALUMINUM (REFERENCE STATE) GRAM FORMULA HEIGHT 26.981

:=====a=========x=========a==

Al: Face-centered cubic crystals 298.15° to melting point 933°K. 

Liquid 933° to 2000°K.

T CUD T tHr»

DEG K

298.

H

 un 

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

933

933

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.610

1.241

1.900

2.585

3.302

4.064

4.329

6.689

7.397

8.156

8.915

9.673

10.432

11.191

11.950

12.709

13.467

14.226

14.985

S

T

(G -H )/T 

T 298

<CAL/DEG-GFW)

6.770

0.020

6.259

9.935

11.135

12.191

13.148

14.045

14.331

17.075

17.604

16.327

18.987

19.594

20.157

20.680

21.170

21.630

22.064

22.474

22.863

6.770

0.020

6.734

7.453

7.968

8.498

9.020.

9.529

9.691

9.691

10.207

10.912

11.558

12.153

12.7C6

13.219

13.701

14.154

14.582

14.987

15.370

FORMATION FROM

ENTHALPY FREE

(KCAL/GFM)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

933 OEG K BOILING POINT 2767 OEG K

2.560 KCAL HEAT OF VAPOR. 69.497 KCAL

1.C940 KCAL MOLAR VOLUME 0.23899 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 158 68

159

COMPILED 

3-31-67
28 THERMODYNAMIC PROPERTIES OF MINERALS 

ARSENIC (REFERENCE STATE) GRAM FORMULA WEIGHT 74.922

As: Rhombohedral crystals 298.15° to sublimation point 885°K. 

Ideal tetratomic gas 885° to 2000°K.

TCMD » tWr 

OEG K

298.15

 J IJ

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

885

885

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF

H -H 

298 0

0.614

1.239

1.880

2.541

3.229

3.837

11.448

11.522

12.014

12.506

12.999

13.492

13.985

14.478

14.972

15.467

15.962

16.457

16.952

POINT 

FUSION

FORMATION FROM

T T 298 ENTHALPY FREE

(CAL/DEG-GFH)

8.400

0.200

10.170

11.560

12.730

13^750

14.670

15.350

23.950

24.070

24.600

25.C80

25.490

25.890

26.270

26.610

26.930

27.230

27.510

27.770

28.020

1.226

8. 400

0.200

8.635

9.082

9.597,

10.120

10.634

11.014

11.014

11.268

12.586

13.711

14.657

15.512

16.281

16.958

17.572

18.132

18.642

19.108

19.544

DEG K 

KCAL 

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

885 

7.611 

0.30982

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

3-31-67
PROPERTIES AT HIGH TEMPERATURES 29 

GOLD (REFERENCE STATE) GRAM FORMULA HEIGHT 196.967

Au: Face-centered cubic crystals 298.15° to melting point 1336°K. 

Liquid 1336° to 2000°K.

H -H

T 298 

DEC K (KCAL)

» -(G -H )/T 

T T 298 

(CAL/DEG-GFM)

FORMATION FROM THE ELEMENTS

 , 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

2981,15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1600

1700

1800

1900

2000

0.625

1.245

1.880

2.525

3.180

3.850

4.530

11.310

0.050

13.110

14.500

15.650

16.660

17.520

18.310

19.030

11.310

0.050

11.547

12.010

12.517

13.053

13.545

14.032

14.500

11.730

12.430

13.130

13.830

14.530

24.560

24.980

25.380

25.760

26.120

17.229

17.668

18.086

18.481

18.855

0.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

1100 

1200 

1300 

1336

1336 

1400 

1500

5.220 

5.930 

6.660 

6.925

9.860 

10.330 

11.030

19.690 

20.310 

20.890 

21.090

23.300 

23.630 

24.110

14.945 

15.368 

15.767 

15.906

15.906 

16.251 

16.757

.000 

.000 

.000 

.000

.000 

.000 

.000

.000 

.000 

.000 

.000

.000 

.000 

.000

.000 

.000 

.000 

.000

.000 

.000 

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 1336 OEG K

HEAT OF FUSION 2.955 KCAL

H -H 1.4340 KCAL

298 0

BOILING POINT '3081 OEG K

HEAT OF VAPOR. 80.080 KCAL

MOLAR VOLUME 0.24414 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

6-13-66
30 THERMODYNAMIC PROPERTIES OF MINERALS 

BORON (REFERENCE STATE) 

B: Rhombohedral crystals 298.15° to melting point 2450°K.

GRAM FORMULA WEIGHT 10.811

333333333333333 3333333333333

TEMP. H -H

T 298 

DEG K (KCAU

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.327

0.740

1.215

1.731

2.276

2.842

3.427

4.031

4.650

5.284

5.931

6.592

7.265

7.950

8.645

9.348

10.057

1.403

0.100

2.339

3.257

4.122

4.917

5.644

6.310

6.927

7.502

8.041

8.548

9.028

9.483

9.918

10.333

10.730

11.110

12.113

1.403

0.100

1.521

1.777

2.097

2.444

2.799

3.152

3.500

3.837

4.166

4.483

4.792

5.088

5.377

5.657

5.927

6.190

7.084

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2450 DEG K BOILING POINT DEC K

5.390 KCAL HEAT OF VAPOR. KCAL

0.2920 KCAL MOLAR VOLUME 0.10483 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

159

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 31

BARIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 137.340 

Ba: Body-centered cubic crystals 298.15° to 648°K. 0 crystals

648° to melting point 983°K. Liquid 983° to boiling point 

1895°K. _Ideal monatomic gas 189.5° to SOOO'K.^

FORMATION FROM THE ELEMENTS 

TEMP. H -H S -IG -H J/T 

T 298 T T 298 ENTHALPY FREE ENERGY LOG K 

OEG K (KCAL) (CAL/DEG-GFW) (KCAL/GFH)

298.15 0.000

UNCERTAINTY

400

500

600

643

643

700

800

900

983

983

1000

1100

1200

1300

1400

1500

1600

1700

1800

1895

1895

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.656

1.334

2.046

2.360

2.510

2.921

3.694

4.537

5.290

7.120

7.247

7.997

8.747

9.497

10.247

10.997

11.747

12.497

13.247

50.665

50.665

50.692

51.354

POINT 

FUSION

16.000

1.000

17.900

19.410

20.710

21.210

21.440

22.070

23.100

24.090

24.870

26.740

26.880

27.600

28.250

28.850

29.410

29.920

30.410

30.860

31.290

51.030

51.030

50.560

50.900

983 

1.830

16.000

1.000

16.260

16.742

17.300

17.538

17.538

17.897

18.462

19.049

19.493

19.493

19.633

20.330

20.961

21.545

22.091

22.589

23.068

23.509

23.931

24.293

24.293

23.880

25.223

OEG K 

KCAL

KCAL

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1895 

36.700

0.91324

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 149 78 COMPILED 

4-15-67
9.012

Hexagonal close packed crystals 298.15° to melting point 

1556°K. Liquid 1556 8 to 2000°K.

Tcyp 1 C n r 

DEG K

298.15

H

 IJn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1556

1556

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

0.440

0.940

1.485

2.060

2.655

3.270

3.910

4.580

5.270

5.980

6.720

7.480

7.920

10.720

11.050

11.800

12.550

13.300

14.050

POINT 

FUSION

S

f /* U % / 1 ~ I G "H 1 /I 

T T 298

(CAL/OEG-GFW)

2.280

0.020

3.540

4.650

5.640

6.530

7.320

8.050

8.730

9.360

9.960

10.530

11.080

11.600

11.920

13.720

13.920

14.390

14.810

15.210

15.600

1556

2.800 

0.4670

2.280

0.020

2.440

2.770

3.165

3.587

4.001

4.417

4.820

5.196

5.568

5.930

6.280

6.613

6.830

6.830

7.014

7.449

7.838

8.210

8.575

DEG K 

KCAL 

KCAL

FORMATION FROM

r 

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

2756 

78.040 

0.11663

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL 

CAL/BAR

REFERENCES 68 68 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 33 

BISMUTH (REFERENCE STATE) GRAM FORMULA WEIGHT 208.980

Bi: Rhombohedral crystals 298.15° to melting point 544.5°K. 

Liquid 544.5° to boiling point 2040°K.

T CUD 1 tHr 

OEG K

298.15

H n 14

T 298

(KCAU

0.000

UNCERTAINTY

400

500

544.5

544.5

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1852

2000

1900

MELTING 

HEAT OF 

H -H

298 0

0.650

1.340

1.660

4.260

4.680

5.430

6.180

6.930

7.680

8.430

9.180

9.930

10.680

11.430

12.180

12.930

13.680

14.075

15.190

14.440

POINT 

FUSION

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY FREE

(CAL/OEG-GFW)

13.560

0.100

15.430

16.970

17.580

22.360

23.100

24.260

25.260

26.140

26.930

27.650

28.300

28.900

29.450

29.970

30.460

30.910

31.340

31.562

32.110

31.720

544.5 

2.600 

1.536

13.5 0

0.100

13.805

14.290

14.533

14.533

15.3CO

16.503

17.535

18.440

19.250

19.986

20.650

21.262

21.821

22.350

22.847

23.304

23.740

23.961

24.515

24.120

DBG K 

KCAL 

KCAL

(KCAL/GFN)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

2040 

0.50930

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 74 158 COMPILED 

5-18-67
34 THERMODYNAMIC PROPERTIES OF MINERALS' 

BROMINE (REFERENCE STATE) GRAM FORMULA WEIGHT 159.818

Br : Liquid 298.15° to boiling point 332.62°K. Ideal diatomic 

gas 332.62° to 2000°K.

TCMD U _ i-i TcWP» H ~H 

T 298

OE6 K (KCAL)

298.15 0.000

UNCERTAINTY

332b62 .623

332.62 7.687

400 8.273

500 9.156

600 10.044

700 10.937

800 11.833

900 12.731

1000 13.631

1100 14.533

1200 15.436

1300 16.341

1400 17.247

1500 18.155

1600 19.064

1700 19.974

1800 20.885

1900 21.797

2000 22.711

MELTING POINT 

HEAT OF FUSION 

H -H

298 0

S -1G -H )/T 

T T 298

(CAL/DEG-GFW)

36.384 36.384

0.080 0.080

38.328 36.455

59.565 36.455

61.203 40.520

63.172 44.860

64.791 48.051

66.167 50.543

67.363 52.572

68.421 54.275

69.370 55.739

70.229 57.017

71.015 58.152

71.740 59.170

72.411 60.092

73.037 60.934

73.624 61.709

74.176 62.427

74.696 63.093

75.190 63.718

75.658 64.302

265.90 DEC K 

2.527 KCAL 

5.8590 KCAL

FORMATION FROM

ENTHALPY FREE

(KCAL/GFM)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

THE ELEMENTS

ENERGY LOG K

0.000 0.000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

332.62 OEG K 

7.064 KCAL 

1.3044 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

COMPILED 

12-10-66
PROPERTIES AT HIGH TEMPERATURES 35 

CARBON (REFERENCE STATE) GRAM FORMULA WEIGHT 12.011

C: Graphite 298.15° to 2000°K.

TEMPI H -H

T 298 

DEG K (KCAL)

5 -<G -H )/T 

T T 298 

(CAL/OEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.250

0.569

0.947

1.372

1.831

2.318

2.824

3.347

3.883

4.432

4.988

5.552

6.122

6.696

7.275

7.857

8.442

1.372

0.005

2.088

2.797

3.484

4.139

4.752

5.324

5.857

6.355

6.822

7.261

7.674

8.063

8.430

8.778

9.109

9.424

9.724

1.372

0.005

1.463

1.659

1.906

2.179

2.463

2.748

3.033

3.312

3.586

3.852

4.111

4.362

4.604

4.839

5.067

5.289

5.503

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

,000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DBG K 

KCAL 

0.2520 KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.12663 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 158

28

COMPILED 

5-18-67
36 THERMODYNAMIC PROPERTIES OF MINERALS 

DIAMOND GRAM FORMULA WEIGHT 12.011

C: Diamond 298.15° to 1200°K.

TCUD U U itnK» n n 

T 298

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400 0.200

500 0.486

600 0.842

700 1.251

800 1.700

900 2.180

1000 2.685

1100 3.212

1200 3.760

S -1G -H )/T

T T 298

ICAL/OEG-GFW)

0.57

0.003

1.14

1.77

2.42

3.05

3.65

4.22

4.75

5.25

5.73

0.57

0.003

0.64

0.80

1.01

1.26

1.52

1.80

2.C6

2.33

2.59

FORMATION FROM

ENTHALPY FREE

(KCAL/GFH)

0.453

0.010

0.403

0.370

0.348

0.332

0.322

0.315

0.314

0.318

0.330

THE ELEMENTS

ENERGY

0.693

0.020

0.783

0.884

0.988

1.096

1.205

1.310

1.423

1.536

1.643

LOG K

-0.508

0.015

-0.428

-0.387

-0.360

-0.342

-0.329

-0.318

-0.311

-0.305

-0.299

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.08166 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 155 158

27

158

56

COMPILED 

5-17-67
PROPERTIES AT HIGH TEMPERATURES 37

CALCIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 40.080

ft 33 3 *3 8 8*3 333,3 3,3.9333 33 3 33,333 9 3 33.03333333,3333 33 32333333 33333S33333a3

Ca: a crystals (face-centered cubic) 298.15° to 737°K. 0 crystals 

(body-centered cubic) 737° to melting point 1123°K. Liquid 

1123 8 to boiling point 1756°K. Ideal monatomic gas 1756° to 

2000°K.

TC UD 1 CMr 

OEG K

298.15

H t-l n 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

737

737

800

900

1000

1100

1123

1123

1200

1300

1400

1500

1600

1700

1756

1756

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.650

1.335

2.060

2.825

3.120

3.180

3.660

4.490

5.390

6.350

6.570

8.540

9.110

9.850

10.590

11.330

12.070

12.810

13.220

49.622

49.829

50.329

50.829

POINT 

FUSION

S

T

f f _U 1 IT 16 n i /I

T 298

(CAL/OEG-GFW)

9.950

0.100

11.830

13.350

14.670

15.850

16.260

16.340

16.960

17.940

18.890

19.800

20.010

21.760

22.250

22.850

23.390

23.910

24.380

24.830

25.070

45.800

45.920

46.190

46.440

1123

1.970

1.3750

9.950

0.100

10.205

10.680

11.237

11.814

12.026

12.026

12.385

12.951

13.500

14.027

14.160

14.160

14.658

15.273

15.826

16.357

16.836

17.295

17.542

17.542

18.237

19.701

21.025

DBG K 

KCAL

KCAL

FORMATION FROM

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1756 

36.402

0.62596

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
38 THERMODYNAMIC PROPERTIES OF MINERALS 

CADMIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 112.400

Cd: Hexagonal close packed crystals 298.15° to melting point 

594.18°K. Liquid 594.18° to boiling point 1040°K. Ideal 

monatomic gas 1040° to 2000°K.

TCfclO 1 CBr 

DEG K

298il5

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

594.18

594.18

600

700

800

900

1000

1040

1040

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.646

1.310

1.960

3.440

3.483

4.193

4.903

5.613

6.323

6.607

30.402

30.703

31.200

31.697

32.194

32.691

33.188

33.685

34.182

34.679

35.176

POINT 

FUSION

S

T

1 f* _LI \ /T I \y ~ n 9/1 

T 298

(CAL/DEG-GFW)

12.380

0.040

14.240

15.720

16.910

19.400

19.480

20.570

21.520

22.360

23.110

23.390

46.270

46.550

46.980

47.380

47.750

48.090

48.410

48.710

48.990

49.250

49.520

594.18 

1.480

1.4940

12.380

0.040

12.625

13.100

13.611

13.611

13.675

14.580

15.391

16.123

16.787

17.037

17.037

18.638

20.980

22.998

24.754

26.296

27.667

28.895

30.000

30.998

31.932

DEC K 

KCAL

KCAL

FORMATION FROM THE ELEMENTS

ENTHALPY FREE

(KCAL/GFH)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

..000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1040 

23.795

0.31083

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

3-31-67
PROPERTIES AT HIGH TEMPERATURES 

CERIUM (REFERENCE STATE) GRAM FORMULA HEIGHT

39 

140.120

Ce: a crystals (face-centered cubic) 298.15° to 1003°K. 

0 crystals 1003° to melting point 1077°K. Liquid 1077° to

2000°K.

TCMD U _U Itnr. H n

T 298

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

40'0 0.672

500 1.365

600 2.090

700 2.860

800 3.660

900 4.510

1000 5.400

1003 5.420

1003 6.120

1077 6.790

1077 8.030

1100 8.250

1200 9.180

1300 10.120

1400 11.050

1500 11.850

1600 12.650

1700 13.450

1800 14.250

1900 15.050

2000 15.850

MELTING POINT 

HEAT OF FUSION 

H -H

298 0

S

I f U \ /^ "lu ~M 1 /

T T 298

ICAL/OEG-GFW)

15.300 15.300

2.000 2.000

17.240 15.560

18.780 16.050

20.110 16.627

21.280 17.194

22.360 17.785

23.350 18.339

24.290 18.890

24.320 18.917

25.020 18.917

25.660 19.355

26.810 19.355

27.010 19.510

27.820 20.170

28.570 20.785

29.260 21.367

29.810 21.910

30.330 22.424

30.810 22.898

31.270 23.353

31.700 23.779

32.110 24.185

1077 OEG K 

1.240 KCAL 

1.6700 KCAL

FORMATION FROM

ENTHALPY FREE

(KCAL/GFH)

0.000 0

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME 0

THE ELEMENTS

ENERGY

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.49642

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
40 THERMODYNAMIC PROPERTIES OF MINERALS

CHLORINE (REFERENCE STATE)

= * = a = 3 = fc= 3= =.= ==,= =* = =»= = = = = =

GRAM FORMULA WEIGHT

» 33 = = = = = == = == = == = = = =

70.906

Ideal diatomic gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

£00

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.845

1.698

2.567

3.445

4.331

5.221

6.115

7.012

7.912

8.814

9.718

10.624

11.532

12.441

13.352

14.264

15.179

S -<G -H )/T 

T T 298 

ICAL/DEG-GFW)

53.288

0.010

55.723

57.627

59.211

60.564

61.746

62.795

63.736

64.591

65.374

66.096

66.766

67.391

67.977

68.529

69.049

69.543

70.012

53.288

0.010

53.610

54.231

54.933

55.643

56.332

56.994

57.621

58.216

58.781

59.316

59.825

60.308

60.769

61.211

61.631

62.036

62.422

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFH)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

172.16 OEG K

1.531 KCAL

2.1940 KCAL

BOILING POINT 239.10 OEG K

HEAT OF VAPOR. 4.878 KCAL

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 41

GRAM FORMULA HEIGHT 56.933

Co: a crystals (hexagonal close packed) 298.15° to 700°K.

0 crystals (face-centered cubic) 700° to melting point 1768' 

Liquid 1768° to 2000°K. Curie point at 1394°K.

TCMD 1 tWr»

OEG K

298U5

H . LJn 

T 298

(KCAU

0.000

UNCERTAINTY

400

500

600

700

700

800

900

1000

1100

1200

1300

1394

1400

1500

1600

1700

1768

1768

1800

1900

2000

0.625

1.280

1.972

2.700

2.608

3.560

4.360

5.214

6.131

7.122

8.213

9.379

9.448

10.438

11.368

12.276

12.890

16.760

17.070

18.038

19.006

S

T

IG -H 1/T 

T 298

(CAL/DEG-GFW)

7.180

0.100

8.970

10.440

11.700

12.820

12.970

13.980

14.920

15.810

16.690

17.550

18.420

19.280

19.330

20.010

20.610

21.160

21.510

23.700

23.880

24.410

24.910

7.180

0.100

7.407

7.860

8.413

8.963

8.963

9.530

10.076

10.596

11.116

11.615

12.102

12.552

12.581

13.051

13.505

13.939

14.220

14.220

14.397

14.916

15.407

FORMATION FROM

ENTHALPY FREE

(KCAL/GFM)

THE ELEMENTS

ENERGY

0.000 0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 1768 DEG K

HEAT OF FUSION 3.870 KCAL

H -H 1.1390 KCAL

298 0

BOILING POINT 3201 DEG K

HEAT OF VAPOR. 89.998 KCAL

MOLAR VOLUME 0.15942 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
42 THERMODYNAMIC PROPERTIES OF MINERALS

CHROMIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 51.996 

Cr: Body-centered cubic crystals 298.15° to melting point 2176°K.

TEMP. H -H

T 298 

DFG K (KCAL)

> -(G -H )/T 

T T 298 

(CAL/DEG-GFVO

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1500

1600

1700

1800

1900

2000

0.591

1.213

1.871

2.558

3.270

4.000

4.752

5.538

6.362

7.233

8.142

9.088

10.080

11.114

12.188

13.303

14.449

5.650

0.050

7.350

8.740

9.940

11.COO

11.950

12.610

13.600

14.350

15.070

15.760

16.430

17.090

17.730

18.350

18.970

19.570

20.160

5.650

0.050

5.872

6.314

6.822

7.346

7.862

8.366

8.848

9.315

9.768

10.196

10.614

11.031

11.430

11.812

12.199

12.568

12.935

0.000

,000

,000

,000

.000

,000

,000

,000

,000

,000

,000

0.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

0.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

.000

,000

,000

,000

,000

,000

MELTING POINT 2130 DEG K 

HEAT OF FUSION 4.047 KCAL

H -H 0.9700 KCAL 

298 0

BOILING POINT 2945 DEG K

HEAT OF VAPOR. 82.283 KCAL

MOLAR VOLUME 0.17283 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

3-31-67
PROPERTIES AT HIGH TEMPERATURES 43

COPPER (REFERENCE STATE) GRAM FORMULA WEIGHT 63.540

Cu: Face-centered cubic crystals 298.15° to melting point 1356°K. 

Liquid 1356° to 2000°K.

TPMD ! c n r 

DEC K

298.

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1357

1357

1400

1500

1600

1700

1800

1900

2000

0.600

1.215

1.845

2.480

3.130

3.800

4.490

5.190

5.895

6.615

7.040

10.160

10.480

11.230

11.980

12.730

13.480

14.230

14.980

s -<

T

P LJ \ J "* b ~H t f

T 298

(CAL/DEG-GFW)

7.970

0.040

9.700

11.070

12.220

13.2CO

14.070

14.860

15.580

16.250

16.870

17.440

17.760

20.060

20.290

20.810

21.290

21.740

22.170

22.580

22.960

7.970

0.040

8.2CO

8.640

9.145

9.657

10.157

10.638

11.090

11.532

11.957

12.352

12.572

12.572

12.8C4

13.323

13.803

14.252

14.681

15.091

15.470

FORMATION FRGM

r 

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1356.6 OEG K BOILING POINT 2846 OEG K

3.120 KCAL HEAT OF VAPOR. 72.610 KCAL

1.2C10 KCAL MOLAR VOLUME 0.17000 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68

114

COMPILED 

4-15-67
44 THERMODYNAMIC PROPERTIES OF MINERALS

FLUORINE (REFERENCE STATE) GRAM FORMULA WEIGHT

F,: Ideal diatomic gas 298.15° to 2000°K.

37.997

TEMP. 

DEG K

29Q.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

fiOO

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.784

1.591

2.423

3.274

4.140

5.016

5.901

6.793

7.690

8.593

9.500

10.411

11.326

12.244

13.166

14.090

15.017

S -(G -H )/T 

T T 298 

(CAL/DEG-GFfc)

48.440

O.C50

50.7CO

52.498

54.015

55.327

56.482

57.514

58i446

59.296

60.077

60.8CO

61.472

62.1CI

62.691

63.248

63.774

64.274

64.750

48.440

0.050

48.740

49.316

49.9,77

50.650

51.307

51.941

52.545

53.121

53.669

54.190

54.686

55.160

55.612

56.046

56.460

56.858

57.241

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

0.000 0

.000

.000-

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.boo

.000

.000

.000

THE ELEMENTS

ENERGY LOG K

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

53.54 PEG K BOILING POINT 85.02 DEG K

0.122 KCAL HEAT OF VAPOR. 1.562 KCAL

2.1100 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

COMPILED 

12-10-66
PROPERTIES AT HIGH TEMPERATURES 45

IRON (REFERENCE STATE) GRAM FORMULA WEIGHT 55.847

Fe: a crystals (body-centered cubic) 298.15° to 1184°K. Curie 

point 1033°K. y crystals (face-centered cubic) 1184° to 

1665°K. 5 crystals (body-centered cubic) 1665° to melting 

point 1809°K. Liquid 1809° to 2000°K.

T r u D 1 Lnr 

OEG K

298.15

H _un 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1184

1184

1200

1300

1400

1500

1600

1665

1665

1700

1800

1809

1809

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.635

1.310

2.040

2.830

3.700

4.680

5.840

7.220

8.030

8.255

8.390

9.210

10.050

10.900

11.770

12.340

12.600

12.940

13.930

14.020

17.650

18.610

19.660

POINT 

FUSION

FORMATION FROM

T T 298 ENTHALPY FREE

(CAL/DEG-GFH)

6.520

O.C30

8.350

9.860

11.190

12.400

13.560

14.720

15.940

17.260

17.970

18.160

18.270

18.920

19.540

20.130

20.690

21.C40

21.200

21.400

21.970

22.C20

24.030

24.540

25.080

1809 

3.630

1.0730

6.520

0.030

6.762

7.240

7.790

8.357

8.935

9.520

10. ICO

10.696

11.188

11.188

11.278

11.835

12.361

12.863

13.334

13.630

13.630

13.788

14.231

14.270

14.270

14.745

15.250

DEC K 

KCAL

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

3148 

83.710

0.16950

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

6-13-66
46 THERMODYNAMIC PROPERTIES OF MINERALS 

HYDROGEN (REFERENCE STATE) GRAM FORMULA WEIGHT 2.016

H- Ideal diatomic gas 298.15° to 2000°K.

TEMP. 

DEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.707

1.406

2.106

2.608

3.514

4.226

4.944

5.670

6.404

7.148

7.902

8.668

9.446

10.233

11.030

11.836

12.651

S -(G -H )/' 

T T «98 

(CAL/DEG-GFW)

31.2C8

0.010

33.247

34.8C6

36.082

37.165

38.107

38.946

39.702

40.394

41.033

41.628

42.187

42.716

43.217

43.695

44.150

44.586

45.004

31.208

0.010

31.479

31.994

32.572

33.154

33.714

34.250

34.758

35.239

35.696

36.130

36.543

36.937

37.313

37.676

38.022

38.357

38.678

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

13.96 DEG K

O.C28 KCAL

2.C240 KCAL

BOILING POINT

HEAT OF VAPOR

MOLAR VOLUME

20.39 DEG K

0.216 KCAL

584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

COMPILED 

12-10-66
PROPERTIES AT HIGH TEMPERATURES 47 

HAFNIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 178.490 

Hft Hexagonal close packed crystals 298.15° to melting point 

2500°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

SCO

600

700

800

900

1000

1100

12CO

1300

1400

1500

1600

17CO

1800

1900

2000

0.636

1.278

1.939

2.618

3.316

4.031

4.765

5.517

6.287

7.076

7.882

8.707

9.550

10.412

11.291

12.189

13.105

S -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

10.410

0.050

12.240

13.660

14.880

15.930

16.860

17.700

18.470

19.190

19.860

20.490

21.090

21.660

22.200

22.720

23.230

23.710

24.180

10.410

0.050

10.650

11.124

11.648

12.190

12.715

13.221

13.7C5

14.175

14.621

15.047

15.460

15.855

16.231

16.595

16.957

17.295

17.627

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

IKCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

250C DEC K BOILING POINT 4876 DEC K

5.750 KCAL HEAT OF VAPOR. 137.462 KCAL

1.397 KCAL MCLAR VOLUME 0.32216 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
48 THERMODYNAMIC PROPERTIES OF MINERALS 

MERCURY (REFERENCE STATE) GRAM FORMULA WEIGHT 200.590

Hg: Liquid 298.15° to boiling point 629.73°K. Ideal monatomic 

gas 629.73° to 2000°K.

T C tt D

1 r:^ r 

DEG K

298.15

H _ LJn 

T 298

(KCAL)

0.000

UNCERTAINTY

4CO

500

600

629.73

629.73

700

800

900

1000

1100

1200

1300

1400

1500

16CO

17CO

1800

1900

2000

0.673

1.325

1.974

2.167

16.339

16.649

17.146

17.642

18.139

18.636

19.133

19.630

20.126

20.623

21.120

21.617

22.114

22.610

23.107

FORMATION FROM 

Sir" LJ \ / T

T T 298 ENTHALPY FREE

(CAL/DEG-GFW)

18.170

O.C20

20.114

21.569

22.751

23.064

45.567

46.033

46.697

47.282

47.805

48.279

48.711

49.109

49.477

49.820

50.140

50.442

50.725

50.994

51.249

18.170

0.020

18.431

18.919

19.461

19.622

19.622

22.249

25.265

27.680

29.666

31.337

32.767

34.0C9

35.101

36.071

36.940

37.726

38.439

39.094

39.695

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.coo

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HF.AT OF FUSION

H -H 

?98 0

234.29 DEC K

0.549 KCAL 

2.2330 KCAL

BOILING POINT 629.73 DEC K

HEAT OF VAPOR. 14.172 KCAL

MOLAR VOLUME 0.35425 CAL/BAR

REFERENCES 68 158 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 49

IODINE (REFERENCE STATE) GRAM FORMULA WEIGHT 253.809

I,: Crystals 298.15° to melting point 386.75°K. Liquid 386.75° 

to boiling point 458.39°K. Ideal diatomic gas 458.39° to 

2000°K.

T C M D

1 IT PI" 

DEG K

298.15

H

ijn 

T 298

(KCAL)

0.000

UNCERTAINTY

386.75

386.75

400

458.39

458.39

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

1.232

4.941

5.196

6.322

16.348

16.719

17.616

18.515

19.416

20.320

21.225

22.132

23.041

23.950

24.862

25.775'

26.689

27.605

28.522

29.441

30.361

POINT 

FUSION

S

_ I r _u \ i * 1 u n I / 

T T 298

(CAL/DEG-GFK)

27.757 27.757

O.C40 0.040

31.312 28.126

40.901 28.126

41.601 28.611

44.221 30.429

66.C92 30.429

66.876 33.438

68.510 39.150

69.696 43.446

71.100 46.830

72.164 49.586

73.118 51.893

73.982 53.862

74.773 55.572

75.501 57.078

76.177 58.418

76.806 59.623

77.397 60.716

77.952 61.714

78.476 62.630

78.973 63.478

79.444 64.263

386.75 DEG K 

3.709 KCAL 

3.1540 KCAL

FORMATION FROM

r 

ENTHALPY FREE

(KCAL/GFH)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

THE ELEMENTS

ENERGY LOG K

0.000 0.000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

.000 .000

458.39 DEG K 

10.026 KCAL 

1.22586 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

COMPILED 

4-15-67
50 THERMODYNAMIC PROPERTIES OF MINERALS

POTASSIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 39.102

Body-centered cubic crystals 298.15° to melting point 336.4°K. 

Liquid 336.4° to fictive boiling point 1043.7°K. Ideal 

monatomic gas 1043.7° to 2000°K. The equilibrium boiling 

point to the real gas is 1037°K.

TCUD 1 t r! r 

DEC K

298.15

H _un

T 298

(KCAL)

0.000

UNCERTAINTY

336.4

336.4

400

500

600

700

800

900

1000

1043.7

1043.7

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

.280

.842

1.327

2.070

2.796

3.512

4.224

4.936

5.657

5.970

25.014

25.294

25.791

26.288

26.785

27.282

27.779

28.277

28.775

29.275

29.775

POINT 

FUSION

S

T

| /* || 1 / T 1 G H ) / T 

T 298

(CAL/OEG-GFVn

15.480

0.020

16.364

18.030

19.355

21.013

22.338

23.442

24.392

25.231

25.990

26.300

44.547

44.805

45.238

45.635

46.004

46.347

46.668

46.969

47.254

47.524

47.781

336.4 

0.562

1.6930

15.480

0.020

15.530

15.530

16.037

16.873

17.678

18.425

19.112

19.747

20.333

20.580

20.580

21.810

23.745

25.413

26.872

28.159

29.306

30.335

31.268

32.116

32.893

DEG K 

KCAL

KCAL

FORMATION FROM THE ELEMENTS

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1043.7 

19.044

1.0841

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 68 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 51

LITHIUM (REFERENCE STA'TE) GRAM FORMULA WEIGHT 6.939

Crystals 298.15° to melting point 453.69°K. Liquid 453.69° 

to boiling point 1638°K. ideal roonatomic gas 1638° to 2000°K. 

The equilibrium boiling point to the real gas is 1620°K.

TEKP.

OEG K

298.15

H

_ LIn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

453.69

453.69

500

600

700

800

900

1000

1100

1200

13CO

1400

1500

1600

1638

1638

1700

1800

1900

2000

0.632

.999

1.716

2.050

2.763

3.463

4.155

4.846

5.536

6.224

6.912

7.598

8.283

8.966

9.647

9.905

45.065

45.374

45.871

46.368

46.866

FORMATION FRCM THE ELEMENTS

T T 298 ENTHALPY FREE

(CAL/OEG-GFV.)

6.950

0.040

8.770

9.626

11.2C7

11.911

13.212

14.290

15.214

16.028

16.755

17.411

18.0C9

18.558

19.066

19.537

19.977

20.137

41.602

41.786

42.C71

42.340

42.595

6.950

0.040

7.190

7.424

7.424

7.811

8.6C7

9.343

10.020

10.644

11.219

11.753

12.249

12.713

13.150

13.560

13.948

14.090

14.090

15.095

16.587

17.936

19.162

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

453.69 OEG K

0.717 KCAL

1.1C50 KCAL

BOILING POINT 1638 OEG K

HEAT OF VAPOR. 35.160 KCAL

MOLAR VOLUME 0.31111 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 113 COMPILED 

4-15-67
52 THERMODYNAMIC PROPERTIES OF MINERALS

MAGNESIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 24.312

Mg: Hexagonal close packed crystals 298.15° to melting point 922°K. 

Liquid 922° to boiling point 1378°K. Ideal monatomic gas 

1363° to 2000°K.

TEMP.

DEG K

298.15

H

_LJn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

922

922

1000

1100

1200

1300

1363

1363

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

0.621

1.260

1.926

2.620

3.342

4.093

4.261

6.401

7.010

7.790

8.570

9.350

9.841

40.290

40.475

40.972

41.469

41.966

42.463

42.960

43.457

POINT 

FUSION

FORMATION FROM

S

I f* LJ 1 / T

T T 298 ENTHALPY FREE

(CAL/OEG-GFW)

7.810

0.030

9.6CO

11.020

12.240

13.310

14.270

15.160

15.340

17.660

18.290

19.040

19.710

20.340

20.710

43.050

43.184

43.527

43.847

44.149

44.433

44.701

44.956

922

2.140 

1.1950

7.810

0.030

8.047

8.500

9.030

9.567

10.092

10.612

10.719

10.719

11.280

11.958

12.568

13.148

13.490

13.490

14.273

16.212

17.929

19.463

20.842

22.090

23.227

OEG K 

KCAL 

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MCLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1363 

30.449 

0.33451

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMP ERATURES 53

MANGANESE (REFERENCE STATE) GRAM FORMULA WEIGHT 54.938

Mn: a crystals 298.15° to 990°K. 0 crystals 990° to 1360°K. >

crystals 1360° to 1410°K. 5 crystals 1410° to melting point 

1517°K. Liquid 1517° to boiling point 2324°K.

T CM D 1 tnr .

DEG K

298.15

H

 un 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

ROD

900

990

990

1000

1100

1200

1300

1400

1410

1410

1500

1517

1517

1600

1700

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.690

1.385

2.190

2.895

3.715

4.570

5.360

5.895

5.985

6.890

7.795

8.715

10.220

10.330

10.760

11.780

11.970

15.470

16.380

17.480

16.580

19.680

20.780

POINT 

FUSION

S

T

FORMATION FROM THE ELEMENTS

\ \J ft 1 / 1

T 298 ENTHALPY FREE

(CAL/DEG-GFW)

7.650

O.C20

9.640

11.190

12.530

13.720

14.810

15.820

16.660

17.200

17.280

18.150

18.930

19.670

20.780

20.860

21.160

21.860

21.990

24.297

24.940

25.610

26.240

26.830

27.400

1517 

3.500

1.1940

7.650

0.020

7.915

8.420

8.880

9.584

10.166

10.742

11.245

11.245

11.295

11.886

12.434

12.966

13.480

13.534

13.534

14.007

14.099

14.099

14.702

15.328

15.918

16.472

17.010

DEG K 

KCAL

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

2324

52.790

0.17576

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
54 THERMODYNAMIC PROPERTIES OF MINERALS

MOLYBDENUM IREFERENCE STATE) GRAM FORMULA WEIGHT 95.940

Mo: Body-centered cubic crystals 298.15° to melting point 2890°K.

TEMP. H -H

T 298 

DEC K (KCAL)

5 -(G -H )/T 

T T 298 

JCAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.598

1.205

1.828

2.462

3.104

3.756

4.422

5.102

5.802-

6.518

7.253

8.006

8.777

9.566

10.373

11.198

12.041

6.850 

O.C50

8.570 

9.930 

11.060 

12.C40 

12.900 

13.660 

14.370

15.010

15.620

16.190

16.740

17.260

17.760

18.230

18.690

19.140

19.570

6.850

0.050

7.075 

7.520 

8.013 

fl.523 

9.020 

9.487 

9.948

10.372

10.785

11.176

11.559

11.923

12.274

12.603

12.927

13.246

13.549

0.000

.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

.000

,000

0.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

0.000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

MELTING POINT 289C OEG K

HEAT OF FUSION 6.650 KCAL

H -H 1.C980 KCAL

298 0

BOILING POINT 4883 DEG K

HEAT OF VAPOR. 141.680 KCAL

MCLAR VOLUME 0.22435 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 55 

NITROGEN (REFERENCE STATE) GRAM FORMULA WEIGHT 28.013

:======= = ===============

N2 : Ideal diatomic gas 298.15° to 2000°K.

TEMP. 

OEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.710

1.413

2.125

2.853

3.596

4.355

.5.129

5.917

6.718

7.529

8.350

9.179

10.015

10.858

11.707

12.560

13.418

S -CG -H )/T 

T T 298 

(CAL/DEG-GFK)

45.770

0.020

47.818

49.386

50.685

51.806

52.798

53.692

54.5C7

55.258

55.955

56.604

57.212

57.784

58.324

58.835

59.320

59.782

60.222

45.770

0.020

46.043

46.560

47.143

47.730

48.303

48.853

49.378

49.879

50.357

50.812

51.248

51.665

52.065

52.448

52.816

53.171

53.513

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

..000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

63.18 OEG K 

0.172 KCAL 

2.C720 KCAL

BOILING POINT 77.36 DEG K

HEAT OF VAPOR. 1.335 KCAL

MOLAR VOLUME 584.727 CAL/.BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

COMPILED 

12-10-66
56 THERMO DYNAMIC PROPERTIES OF MINERALS

SODIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 22.990

Na: Body-centered cubic crystals 298.15° to melting point 370.98°K. 

Liquid 370.98° to fictive boiling point 1176. 9°K. Ideal 

monatomic gas 1176.9° to 2000°K. The equilibrium boiling

to_the_real_2as_is_1156^Ki ____ _______ __________

FORMATION FROM THE ELEMENTS 

TEMP. H -H S -<G -H )/T 

T 298 T T 298 ENTHALPY FREE ENERGY LOG K 

DEC K (KCAL) ( CAL/DEG-GFW) (KCAL/GFW)

298.15 0.000

UNCERTAINTY

370.98

370.98

400

500

600

700

800

900

1000

1100

1176.9

1176.9

12CO

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

.514

1.135

1.356

2.097

2.818

3.524

4.219

4.909

5.599

6.295

6.836

30.121

30.235

30.732

31.229

31.726

32.223

32.719

33.216

33.713

34.211

POINT 

FUSION

12.240

0.120

13.778

15.454

16.028

17.683

18.998

20.085

21.014

21.827

22.554

23.216

23.688

43.473

43.573

43.971

44.339

44.682

45.003

45.304

45.588

45.857

46.112

370.98 

0.622 

1.5410

12.240

0.120

12.394

12.394

12.638

13.489

14.301

15.051

15.740

16.373

16.955

17.493

17.880

17.880

18.377

20.331

22.033

23.531

24.864

26.058

27.135

2K.113

29.0C6

DEC K 

KCAL 

KCAL

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1176.9 

23.285 

0.56912

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 112

158

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 57 

NIOBIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 92.906 

Nb: Body-centered cubic crystals 298.15° to melting point 2740 8 K.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

IftOO

1900

2000

0.611

1.226

1.849

2.482

3.126

3.778

4.442

5.116

5.799

6.493

7.196

7.911

8.635

9.369

10.113

10.868

11.632

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

8. 700

0.100

10.460

11.830

12.970

13.940

14.800

15.570

16.270

16.910

17.510

18.C60

18.580

19.070

19.540

19.980

20.410

20.820

21.210

8.700

0.1CO

8.932

9.378

9.888

10.394

10.892

11.372

11.828

12.259

12.677

13.065

13.440

13.796

14.143

14.469

14.792

15.100

15.394

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2740 DEG K BOILING POINT 5017 OEG K

6.302 KCAL HEAT OF VAPOR. 163.003 KCAL

1.2550 KCAL MOLAR VOLUME 0.25880 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

6-13-66
58 THERMODYNAMIC PROPERTIES OF MINERALS

NICKEL (REFERENCE STATE)

===*===t= ===3======= ====

GRAM FORMULA WEIGHT 58.710

Ni: Face-centered cubic crystals (magnetic) to Curie point 630°K. 

Non magnetic 630° to melting point 1726°K. Liquid 1726° to 

2000°K.

TCMD 1 cnr .

OEG K

298.15

H

. LIn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

631

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1726

1726

1800

1900

2000

0.666

1.373

2.155

2.423

2.945

3.685

4.439

5.215

6.014

6.836

7.680

8.539

9.404

10.269

11.134

11.359

15.535

16.296

17.326

18.356

FORMATION FROM

T T 298 ENTHALPY FREE

(CAL/DEG-GFW)

7.140

0.020

9.060

10.640

12.060

12.500

13.290

14.280

15.170

15.990

16.750

17.470

18.140

18.780

19.380

19.940

20.460

20.600

23.020

23.450

24.000

24.530

7.140

0.020

7.395

7.894

8.468

8.660

9.083

9.674

10.238

10.775

11.283

11.773

12.232

12.681

13.111

13.522

13.911

14.019

14.019

14.397

14.881

15.352

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1726 DEC K BOILING POINT 3187 DEC K

4.176 KCAL HEAT OF VAPOR. 88.523 KCAL

H -H 1.1440 KCAL MOLAR VOLUME 0.15746 CAL/BAR

298 0

REFERENCES 68 68 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 59

OXYGEN (REFERENCE STATE)

0_: Ideal diatomic gas 298.15° to 2000°K.

GRAM FORMULA WEIGHT 31.999

= = = == = = = = = = === = == = ====== = = = = = = = = = = = =

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

soo

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.724

1.455

2.210

2.988

3.786

4.600

5.427

6.266

7.114

7.971

8.835

9.706

10.583

11.465

12.354

13.249

14.149

S -<G -H )/T 

T T 298 

(CAL/OEG-GFW)

48.996

0.010

51.083

52.714

54.090

55.289

56.353

57.312

58.184

58.983

59.721

60.407

61.047

61.648

62.214

62.749

63.257

63.741

64.202

48.996

0.010

49.273

49.8C4

50.407

51.020

51.620

52.2C1

52.757

53.287

53.793

54.275

54.736

55.177

55.6CO

56.005

56.394

56.768

57.127

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

54.39 DEG K

0.106 KCAL

2.0750 KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME 584.

90.13 DEG K

1.629 KCAL

727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 COMPILED 

6-13-66
60 THERMODYNAMIC PROPERTIES OF MINERALS

PHOSPHORUS (REFERENCE STATE) GRAM FORMULA WEIGHT 30.974

P: Crystals (red triclinia, V) 298.15° to sublimation point 704°K. 

Ideal diatomic gas 704° to 2000°K.

T C MD 1 t F r 

DEG K

298.15

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

704

704

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.542

1.113

1.714

2.347

2.373

23.015

23.430

23.866

24.305

24.746

25.189

25.633

26.078

26.524

26.971

27.419

27.867

2S.316

28.766

S -1

T

FORMATION FROM

f f* _u 1 /T _ _ _'_ _ _ _

T 298 ENTHALPY FREE

(CAL/DEG-GFK)

5.450

O.C20

7. Oil

8.283

9.377

10.352

10.388

29.571

30.124

30.638

31.100

31.520

31.905

32.261

32.591

32.899

33.187

33.459

33.715

33.958

34.188

5.450

0.020

5.656

6.057

6.520

6.999

7.017

-3.121

0.836

4.120

6.795

9.024

10.914

12.543

13.964

15.216

16.330

17.330

18.233

19.055

19.805

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

0.8620 KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.41109 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 61 

LEAD (REFERENCE STATE) GRAM FORMULA WEIGHT 207.190

Pb: Faced-centered cubic crystals 298.15° to melting point 600.6°K, 

Liquid 600.6° to boiling point 2023°K.

T C U D 1 C PI r 

DEG K

298.15

H

_url 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

600.6

600.6 700'

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2023

2023

0.655

1.320

2.013

2.017

3.164

3.886

4.610

5.322

6.028

6.727

7.417

8.104

8.788

9.472

10.156

10.840

11.524

12.208

12.892

13.049

55.520

FORMATION FROM

T T 298 ENTHALPY FREE

(CAL/DEG-GFV.)

15.550

0.100

17.440

18.920

20.180

20.190

22.100

23.210

24.180

25.020

25.760

26.420

27.C30

27.570

28.080

28.550

28.980

29.410

29.800

30.170

30.520

30.600

51.590

15.550

0.100

15.802

16.280

16.825

16.832

16.832

17.659

18.417

19.107

19.732

20.3C5

20.849

21.336

21.803

22.235

22.632

23.034

23.398

23.745

24.074

24.148

24.148

(KCAL/GFW) 

 « 

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

600.6 DEG K

1.147 KCAL

1.6430 KCAL

BOILING POINT 2023 DEG K

HEAT OF VAPOR. 42.471 KCAL

MOLAR VOLUME 0.43659 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
62 THERMODYNAMIC PROPERTIES OF MINERALS 

PLATINUM (REFERENCE STATE) GRAM FORMULA WEIGHT 195.090

Pt: Face-centered cubic crystals 298.15° to melting point 2043°K.

TEMPi 

OEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.635

1.270

1.920

2.580

3.260

3.950

4.660

5.380

6.110

6.850

7.600

8.360

9.140

9.930

10.730

11.540

12.360

S -(G -H )/T 

T T 298 

(CAL/DEG-GFh).

9.950

0.050

11.780

13.200

14.380

15.400

16.310

17.120

17.870

L8.550

19.190

19.780

20.330

20.860

21.360

21.840

22.300

22.740

23.160

9.950

0.050

10.192

10.660

11.180

11.714

12.235

12.731

13.210

13.659

14.098

14.511

14.9C1

15.287

15.647

15.999

16.339

16.666

16.980

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFH)

0.000 0

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2043 DEG K BOILING POINT 4097 OEG K

4.700 KCAL HEAT OF VAPOR. 121.830 KCAL

1.3740 KCAL MOLAR VOLUME 0.21728 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 63 

SULFUR (REFERENCE STATE) GRAM FORMULA WEIGHT 32.064

S: Orthorhombic crystals 298.15° to 368.54°K monoclinic crystals 

368.54° to melting point 388.36°K. Liquid 388.36° to boiling 

point 717.75°K. Ideal diatomic gas 717.75° to 2000°K.

TEMP

DEG

298

 H **H

T

K

.15

298

S

(KCAL)

0. 000

UNCERTAINTY

368

368

?88

388

400

500

600

700

717

717

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

19CO

2000

.54

.54

?36

.36

.75

.75

MELTING

HEAT

H

298

OF

-H

0

.

.

.

1.

1.

2.

2.

3.

3.

17.

17.

17.

18.

18.

19.

19.

20.

20.

21.

21.

21.

22.

22.

394

490

609

019

109

048

904

704

842

171

529

967

408

851

295

740

187

635

083

532

982

432

883

POINT

7

0

8

9

9

10

10

12

14

15

15

30

31

31

32

32

33

33

33

34

34

34

34

35

35

_ I /* _U » * i \ (y "n

T T

i / i 

298

(CAL/DEG-GFW)

.600

.C40

.786

.C47

.360

.417

.645

.738

.302

.536

.730

.900

.363

.879

.344

.765

.152

.509

.840

.148

.438

.710

.967

.210

.442

388.36

FUSION

1

0.411

.0530

7.

0.

7.

7.

7.

7.

7.

8.

9.

10.

10.

6.

9.

11.

13.

15.

17.

13.

19.

20.

21.

22.

22.

23.

24.

DEG

KCAL

KCAL

600

040

717

717

792

792

872

642

462

245

377

977

452

916

936

628

073

324

421

391

261

044

755

4C4

000

K

FORMATION FROM

r 

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

717.75

2.300

0.37072

LOG

0.

.

.

.

0.

.

.

DEG

KCAL

K

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

000

K

CAL/BAR

TRftNSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158

78

COMPILED 

5-11-67
64 THERMODYNAMIC PROPERTIES OF MINERALS

DIATOMIC SULFUR (IDEAL GAS) GRAM FORMULA WEIGHT 64.128

S 2 : Ideal diatomic gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

13CO

1400

1500

1600

1700

1800

1900

20CO

0.811

1.639

2.486

3.347

4.217

5.093

5.975

6.860

7.749

8.640

9.533

10.428

11.325

12.223

13.123

14.024

14.926

S -(G -H I/T 

T T 298 

(CAL/DEG-GFK)

54.51

0.10

56.85

58.69

60.24

61.56

62.73

63.76

64.69

65.53

66.30

67.02

67.68

68.30

68.87

69.42

69.93

70.42

70.88

54.51

0.10

54.82

55.41

56.09

56.78

57.45

58.10

58.71

59.29

59.85

60.37

60.87

61.34

61.80

62.23

62.64

63. C4

63.42

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

30.840

0.150

29.433

28.383

27.518

26.779

"0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

19. 120

0.160

15.210

11.775

8.538

5.435

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

-14.015

0.117

-8.310

-5.147

-3.110

-1.697

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

MELTING POINT 

HEAT OF FUSION

H -H 

?98 0

DEG K 

KCAL 

2.1410 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MCNO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 148 148

158

148

158

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 65

OCTA-ATOMIC SULFUR GRAM FORMULA WEIGHT 256.512

fc===*===e======^=3==z^=3===============^===s=======ix===========»==

S 0 : Ideal octatomic gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEG K <KCAL)

298.15 0.000

UNCERTAINTY

AGO

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

3.944

7.999

12.153

16.367

20.619

24.897

29.193

33.503

37.823

42.151

46.485

50.824

55.168

59.514

63.864

68.216

72.569

S -(G -H )/T 

T T 298 

(CAL/OEG-GFWJ

102.82

0.40

114.18

123.22

130.80

137.29

142.97

148.01

152.53

156.64

160.40

163.86

167.08

170.07

172.87

175.51

177.99

180.35

182.58

102.82

0.40

104.32

107.22

110.54

113.91

117.20

120.35

123.34

126.18

128.88

131.44

133.88

136.19

138.39

140.50

142.51

144.45

146.30

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

24.200

0.150

19.272

15.815

13.121

10.935

-<T5T413

-94.639

-93.871

-93.105

-92.337

-91.569

-90.811

-90.056

-89.296

-88.542

-87.792

-07.040

-86.295

11.672

0.220

7.664

5.157

3.291

1.834

-9.066

1.681

12.351

22.923

33.442

43.907

54.285

64.615

74.918

85.147

95.351

105.487

115.617

-8.556

0.161

-4.187

-2.254

-1.199

-0.572

2.477

-0.408

-2.699

-4.554

-6.091

-7.381

-8.474

-9.414

-10.233

-10.946

-11.577

-12.134

-12.634

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

7.4870 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 148 148

158

148

158

COMPILED 

5-18-67
66 THERMODYNAMIC PROPERTIES OF MINERALS 

ANTIMONY (REFERENCE STATE) GRAM FORMULA WEIGHT 121.750

Sb: Rhombohedral crystals 298.15° to melting point 903°K. Liquid 

903° to boiling point 1908°K. Ideal diatomic gas 1908° to 

2000°K.

TCAI D U _U 1 tr, K n n 

T 298

DEG K

298.15

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

903

903

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

1908

1908

2000

MELTING 

HEAT OF

H -H

298 0

0.625

1.250

1.890

2.550

3.240

3.950

4.020

8.710

9.440

10.190

10.940

11.690

12.440

13.190

13.940

14.690

15.440

16.190

16.250

34.834

35.775

POINT 

FUSION

S

T

(G -H )/T 

T 298

(CAL/DEG-GFh)

10.920

0.050

12.720

14.110

15.280

16.300

17.220

18.060

18.130

23.320

24.100

24.810

25.460

26.060

26.620

27.130

27.620

28.070

28.500

28.900

28.940

38.680

38.890

903 

4.690

1.4100

10.920

0.050

11.157

11.610

12.130

12.657

13.170

13.671

13.676

13.676

14.660

15.546

16.343

17.068

17.734

18.337

18.907

19.429

19.922

20.379

20.423

20.423

21.003

DEG K 

KCAL

KCAL

FORMATION FROM

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1908 

18.584

0.43446

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68

158

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 67 

SELENIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 78.960

Se: Crystals 298.15° to meltinq point 490°K. Liquid 490° to 

boiling point 958°K. Ideal diatomic qas 958° to 2000°K.

TCMD 1 tnr «

OEG K

298.15

H

 un 

T 298

(KCAL)

0.000

UNCERTAINTY

400

490

490

500

600

700

800

900

958

958

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.650

1.266

2.566

2.650

3.490

4.330

5.170

6.010

6.497

19.972

20.160

20.610

21.060

21.510

21.970

22.420

22.880

23.340

23.810

24.270

24.740

S

T

(G -H )/T

T 298

(CAL/DEG-GFH)

10.144

O.C50

12.014

13.464

16.117

16.204

17.734

19.C34

20.154

21.144

21.171

35.237

35.424

35.854

36,244

36.614

36.9«4

37.264

37.554

37.834

38.104

38.354

38.594

10.144

0.050

10.389

10.880

10.880

10.904

11.917

12.848

13.691

14.466

14.389

14.389

15.264

17.118

18.694

20.068

21.251

22.317

23.254

24.105

24.876

25.580

26.224

FORMATION FROM

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

,000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT

HEAT OF FUSION

H -H

298 0

490 DEG K

1.300 KCAL

1.3190 KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

958 OEG K

13.473 KCAL

0.39245 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 149 158 COMPILED 

4-15-67
68 THERMODYNAMIC PROPERTIES OF MINERALS

SILICON (REFERENCE STATE) GRAM FORMULA WEIGHT 28.086

Si: Crystals 298.15° to meltinq point 1685°K. Liquid 1685° to 

2000°K.

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

000

S

4 

0

-(G -H )/T 

T T 298 

(CAL/DEG-GFfc)

.500 

.020

4. 

0.

SCO 

020

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

0.000

THE ELEMENTS

ENERGY

0.000

LOG K

0.000

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

0.516

1.062

1.634

2.225

2.831

3.451

4.081

4.720

5.366

6.018

6.676

7.340

5.980

7.200

8.240

9.150

9.960

10.690

11.360

11.970

12.530

13.050

13.540

13.990

4.690

5.076

5.517

5.971

6.421

6.856

7.279

7.679

8.058

8.421

8.771

9.097

,000

,000

,000

,000

.000

,000

,000

,000

,000

,000

,000

,000

.000

000

,000

000

,000

,000

,000

,000

,000

,000

000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

.000

,000

1600 

1685

1685 

1700 

1800 

1900 

2000

8.010 

8.583

20.665 

20.756 

21.366 

21.976 

22.586

14.420 

14.770

21.940 

21.990 

22.340 

22.670 

22.980

9.414 

9.676

9.676 

9.781 

10.470 

11.104 

11.687

.000 

.000

.000 

.000 

.000 

.000 

.000

.000 

.000

.000 

.000 

.000 

.000 

.000

.000 

.000

.000 

.000 

.000 

.000 

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1685 DEG K BOILING POINT 3553 OEG K

12.082 KCAL HEAT OF VAPOR. 93.891 KCAL

0.7690 KCAL MOLAR VOLUME 0.28815 CAL/BAR

REFERENCES 68 68

35

COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 69 

TIN (REFERENCE STATE) GRAM FORMULA WEIGHT 118.690

Sn: Crystals 298.15° to melting point 505°K. Liquid 505° to 

2000°K.

T C M D

1 t n r *

DEG K

298.15

H

. LJn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

505

505

600

700

BOO

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.680

1.390

1.430

3.100

3.760

4.445

5.130

5.820

6.500

7.190

7.870

8.560

9.240

9.930

10.610

11.300

11.980

12.670

13.350

FORMATION FROM

S

i /* u i y T _

T T 2<58 ENTHALPY FREE

(CAL/DEG-GFK)

12.320

0.060

14.280

15.860

15.940

19.250

20.450

21.510

22.430

23.230

23.950

24.610

25.200

25.750

26.260

26.730

27.170

27.590

27.980

28.350

28.700

12.320

0.060

12.580

13.080

13.110

13.110

14.183

15.160

16.017

16.763

17.450

18.074

18.642

19.165

19.660

20.110

20.539

20.943

21.324

21.682

22.025

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

505 DEG K BOILING POINT 2896 DEG K

1.670 KCAL HEAT OF VAPOR. 70.770 KCAL

1.5050 KCAL MOLAR VOLUME 0.38932 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68

159

COMPILED 

12-10-66
70 THERMODYNAMIC PROPERTIES OF MINERALS

STRONTIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 87.620

Sr: a crystals (face-centered cubic) 298.15° to 862°K. Y crystals 

(body-centered cubic) 862° to melting point 1043°K. Liquid 

1043° to boiling point 1648°K. Ideal monatomic gas 1648° to 

2000°K.

T CUD U .14 I cWr * n ~n 

T 298

OEG K

298.15

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

862

862

900

1000

1043

1043

1100

1200

1300

1400

1500

1600

1648

1648

1700

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

0.660

1.340

2.050

2.800

3.580

4.080

4.280

4.610

5.520

5.930

8.330

8.750

9.490

10.230

10.970

11.710

12.450

12.810

46.010

46.269

46.769

46.269

46.769

POINT 

FUSION

S

 / f* LJ \ / 1 " 1 b n 1 / 1 

T T 298

(CAL/DEG-GFW)

12.500

0.500

14.400

15.920

17.220

18.370

19.410

20. CIO

20.240

20.620

21.580

21.980

24.280

24.670

25.320

25.910

26.460

26.970

27.450

27.670

47.820

48.C80

48.370

48.640

48.900

1043 

2.400

12. SCO

0.500

12.750

13.240

13.8C3

14.370

14.935

15.276

15.276

15.498

16.060

16.293

16.293

16.715

17.412

18.041

18.624

19.163

19.669

19.897

19.897

20.863

22.387

24.288

25.515

OEG K 

KCAL

KCAL

FORMATION FROM

r 

ENTHALPY FREE

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR.

MCLAR VOLUME

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

1648 

33.200

0.81073

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 71

TELLURIUM (REFERENCE STATE)

3,S = *3 336 = 3333 3 = 3 3 33 3 33 = 3,3 = = 3 3

GRAM FORMULA WEIGHT 127.600

3.33==3 = = 3 = = =333 =33 = 3333=3333

Te: Crystals 298.15° to melting point 723°K. Liquid 723° to boiling point 1262°K. Ideal diatomic gas 1260° to 2000°K.

TEMP.

DEG K

298.15

H

_LJn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

723

723

800

900

1000

1100

1200

1262

1262

1300

1400

1500

1600

1700

1800

1900

20CO

MELTING 

HEAT OF 

H -H

298 0

0.653

1.347

2.094

2.894

3.085

7.265

7.960

8.860

9.760

10.660

11.560

12.118

24.402

24.250

24.700

25.145

25.590

26.040

26.485

26.930

27.380

POINT 

FUSION

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY FREE

(CAL/DEG-GFN)

11.880

0.100

13.760

15.310

16.670

17.900

18.120

23.900

24.860

25.920

26.870

27.720

28.510

28.910

38.644

38.580

38.910

39.220

39.510

39.780

40.C30

40.280

40.510

723

4.180 

1.4630

11.880

0.100

12.127

12.616

13.180

13.766

13.853

13.853

14.910

16.076

17.110

18.029

18.877

19.3C8

19.308

19.926

21.267

22.457

23.516

24.462

25.316

26.1C6

26.820

DEC K 

KCAL 

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

iOOO

1262 

12.284 

0.48939

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEC K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68

158

COMPILED 

5-17-67
72 THERMODYNAMIC PROPERTIES OF MINERALS

THORIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 232.038

o crystals (face-centered cubic) 298.15° to 1673°K.

0 crystals ' (body-centered cubic) 1673° to melting point

1968°K. Liquid 1968° to 2000°K.

TCM D 1 tPlr 

OEG K

298.15

H

_L|n 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1673

1673

1700

1800

1900

1968

1968

2000

MELTING 

HF.AT OF

H -H

298 0

0.680

1.380

2.110

2.870

3.660

4.480

5.330

6.220

7.130

8.070

9.040

10.050

11.080

11.850

12.520

12.820

13.920

15.020

15.770

20.270

20.620

POINT 

FUSION

S

T

FORMATION FROM THE ELEMENTS 

ir u i /T __,.-.___..______...-___.-_ .-

T 298 ENTHALPY FREE ENERGY

(CAL/OEG-GFK)

12.760

0.200

14.730

16.290

17.620

18.790

19.850

20.810

21.710

22.550

23.350

24.100

24.820

25.510

26.180

26.660

27.060

27.240

27.870

28.470

28.860

31.150

31.330

1968 

4.500

1.5560

12.760

0.2CO

13.030

13.530

14.103

14.690

15.275

15.832

16.380

16.895

17.4C8

17.892

18.363

18.810

19.255

19.577

19.577

19.699

20.137

20.565

20.850

20.850

21.020

OEG K 

KCAL

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.coo

ROILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

5120 

121.930

0.47294

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.nnn

.000

.000

DEC K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 73

TITANIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 47.900

== = === = = = 3 = == = = 3 = 33333 = 3 = 333

Ti: Hexagonal close packed crystals 298.15° to melting point 

1943°K. Liquid 1943° to 2000°K.

TEMP.

DEC K

298.15

H

 un 

T 298

(KCAL)

0.000

UNCERTAINTY

AGO

500

600

700

800

900

1000

1100

1155

1155

1200

13CO

1400

1500

1600

1700

1800

1900

1943

1943

2000

MELTING

HEAT OF 

H -H

298 0

0.627

1.270

1.935

2.624

3.337

4.075

4.836

5.621

6.063

7.080

7.397

8.120

8.867

9.639

10.436

11.258

12.105

12.976

13.358

17.050

17.563

POINT 

FUSION

S

T

FORMATION FROM THE ELEMENTS

T 298 ENTHALPY FREE

(CAL/DEG-GFN)

7.320

O.C20

9.130

10.560

11.770

12.840

13.790

14.660

15.460

16.210

16.6CO

17.480

17.750

18.330

18.880

19.410

19.930

20.430

20.910

21.380

21.580

23.460

23.740

1943 

3.692 

1.1490

7.320

0.020

7.562

8.020

8.545

9.091

9.619

10.132

10.624

11.100

11.350

11.350

11.586

12.084

12.546

12.984

13.4C7

13.808

14.185

14.551

14.7C5

14.705

14.958

DEC, K 

KCAL 

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

ENERGY.

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 3562 

HEAT OF VAPOR. 100.629 

MOLAR VOLUME 0.25409

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
74 THERMODYNAMIC PROPERTIES OF MINERALS

URANIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 238.030

U: a crystals (orthorhombic) 298.15° to 941°K. 0 crystals

(tetragonal) 941° to 1048°K. y crystals (body-centered cubic) 

1048° to melting point 1405°K. Liquid 1405° to 2000°K.

TEMP. H -H S -(G -H )/T

T 298 T T 298

OEG K (KCAL) (CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

12.0CO 

O.C30

12.000

0.030

1048 7.330 23.260 16.267

0.000 0.000 0.000

400

500

600

700

800

900

941

941

1000

0.700

1.435

2.230

3.100

4.050

5.100

5.560

6.230

6.840

14.010

15.650

17.100

18.440

19.710

20.940

21.440

22.150

22.780

12.260

12.780

13.383

14.011

14.647

15.273

15.530

15.530

15.940

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000 ,000 .000

1048

1100

1200

1300

1400

1405

1405

1500

1600

1700

1800

1900

2000

MELTING

HEAT OF

H -H

298 0

8.460

8.940

9.850

10.770

11.680

11.730

14.820

15.690

16.610

17.525

18.440

19.355

20.270

POINT

FUSION

24.340

24.780

25.580

26.310

26.990

27.020

29.220

29.820

30.430

30.980

31.510

32.000

32.460

1405

3.090

1.5210

16.267

16.653

17.372

18.025

18.647

18.671

18.671

19.360

20.049

20.671

21.266

21.813

22.325

OEG K

KCAL

KCAL

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

4473

117.380

0.29869

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

DEG K

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 75 

VANADIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 50.942

V: Body-centered cubic crystals 298.15° to melting point 2175°K.

TEMP. H -H 

T 298 

DEC K (KCAU

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

IfiOO

1900

2000

0.624

1.260

1.911

2.574

3.251

3.945

4.660

5.402

6.172

6.969

7.792

8.644

9.531

10.457

11.421

12.420

13.457

S -<G -H )/T 

T T 298 

(CAL/DEG-GFK)

6.910

0.100

8.710

10.130

11.310

12.330

13.240

14.060

14.810

15.520

16.190

16.820

17.430

18.020

18.590

19.150

19.710

20.250

20.780

6.910

0.1CO

7.150

7.610

8.125

8.653

9.176

9.677

10.150

10..6C9

11.047

11.459

11.864

12.257

12.633

12.999

13.365

13.713

14.051

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.cfoo

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.oao

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2175 DEG K BOILING POINT 3682 D6G K

5.002 KCAL HEAT OF VAPOR. 108.005 KCAL

1.1090 KCAL MOLAR VOLUME 0.19957 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

12-10-66
76 THERMODYNAMIC PROPERTIES OF MINERALS

TUNGSTEN (REFERENCE STATE) GRAM FORMULA WEIGHT 183.850 

W: Body-centered cubic crystals 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEC K (KCAU

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.602

1.208

1.826

2.452

3.085

3.726

4.373

5.028

5.692

6.363

7.043

7.731

8.427

9.131

9.843

10.563

11.291

S -IG -H >/T 

T T 298 

(CAL/DEG-GFM

7.800

0.100

9.540

10.890

12.010

12.980

13.820

14.580

15.260

15.900

16.470

17.010

17.520

17.990

18.440

18.870

19.270

19.660

20.040

7.800

0.100

8.035

fl.474

8.967

9.477

9.964

10*440

10.887

11.329

11.727

12.115

12.489

12.836

13.173

13.499

13.802

14.1C1

14.394

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HF.AT OF FUSION

H -H 

298 0

3680 DEC K

8.460 KCAL 

1.1900 KCAL

BOILING POINT 5828 DEG K

HEAT OF VAPOR. 196.920 KCAL

MOLAR VOLUME 0.22813 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 77

ZINC (REFERENCE STATE) GRAM FORMULA WEIGHT 65.370

Zn: Hexagonal close packed crystals 298.15° to melting point 

692.7°K. Liquid 692.7° to boiling point 1181°K. Ideal 

monatomic gas 1181° to 2000°K.

T C ft* D

1 t n r 

OEG K

298.15

H "~ H 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

692.7

,692.7

700

800

900

1000

1100

1184

1184

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

0.630

1.270

1.940

2.580

4.345

4.400

5.150

5.900

6.650

7.400

8.030

35.650

35.660

36.157

36.654

37.150

37.647

38.144

38.641

39.138

39.634

POINT 

FUSION

FORMATION FROM

S

f f* LJ 1 /T ___ ____ _____

T T 298 ENTHALPY FREE

(CAL/DEG-GFW)

9.950

0.050

11.760

13.200

14.410

15.400

17.950

18.030

19.030

19.920

20.710

21.420

21.970

45.300

45.370

45.770

46.140

46.480

46.800

47. ICO

47.380

47.650

47.910

692.7 

1.765 

1.3500

9.950

0.050

10.185

10.660

11.177

11.676

11.676

11.744

12.592

13.364

14.060

14.693

15.188

15.188

15.653

17.957

19.959

21.713

23.271

24.662

25.913

27.051

28.093

DEG K 

KCAL 

KCAL

(KCAL/GFW)

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

BOILING POINT 1184 

HEAT OF VAPOR. 27.620 

MOLAR VOLUME 0.21898

LOG K

0.000

.000"

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 68 68 COMPILED 

4-15-67
78 THERMODYNAMIC PROPERTIES OF MINERALS 

ZIRCONIUM (REFERENCE STATE) GRAM FORMULA WEIGHT 91.220

Zr: Hexagonal close packed crystals 298.15° to .1143.2°K. Bodycentered cubic crystals 1143.2° to melting point 2128°K.

T CUD 1 tnr 

DEC K

298.15

H

_LJn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

BOO

900

1000

1100

1143.2

1143.2

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.646

1.317

2.021

2.746

3.484

4.229

4.983

5.753

6.087

7.049

7.491

8.265

9.047

9.835

10.630

11.433

12.242

13.058

13.882

S

T

(G -H )/T

T 298

<CAL/DEG-GFK)

9.310

O.C40

11.170

12.667

13.950

15.067

16.052

16.930

17.725

18.458

18.752

19.594

19.975

20.594

21.173

21.717

22.231

22.717

23.180

23.621

24.C43

*.310

0.040

9.555

10.033

10.582

11.144

11.697

12.231

12.742

13.228

13.427

13.427

13.732

14.236

14.711

15.160

15.587

15.992

16.379

16.748

17.102

FORMATION FROM

ENTHALPY FREE

(KCAL/GFM)

0.000 0

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

THE ELEMENTS

ENERGY

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

LOG K

0.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2128 OEG K BOILING POINT 4747 DEC K

4.890 KCAL HEAT OF VAPOR. 136.400 KCAL

1.3170 KCAL MOLAR VOLUME 0.33499 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 31

148

COMPILED 

11-14-66
PROPERTIES AT HIGH TEMPERATURES 79

AMMONIA (IDEAL GAS) GRAM FORMULA WEIGHT 17.031 

NH,: Ideal gas 298.15° to 2000°K.

TEMP. 

OEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

AGO

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.883

1.819

2.827

3.905

5.053

6.265

7.540

8.873

10.260

11.697

13.180

14.704

16.267

17.864

19.491

21.146

22.826

S -(G -H »/T 

T T 2<58 

(CAL/OEG-GFW)

45.97

0.05

48.51

50.60

52.43

54.10

55.63

57.05

58.40

59.67

60.87

62.02

63.12

64.17

65.18

66.15

67.08

67.97

68.84

45.97

O.C5

46.31

46.96

47.72

48.52

49.31

50. C9

50.86

51.60

52.32

53.03

53.71

54.37

55. C2

55.64

56.25

56.85

57.42

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

JKCAL/GFW)

-11.020

0.100

-11.552

-12.016

-12.414

-12.753

-13.036

-13.271

-13.460

-13.610

-13.725

-13.809

-13.868

-13.907

-13.929

-13.934

-13.927

-13.908

-13.879

-3.946

0.110

-1.446

1. 135

3.804

6.535

9.310

12.118

14.950

17.799

20.660

23.528

26.402

29.280

32.159

35.042

37.921

40.802

43.682

LOG K

2.892

O.OfU

0.790

-0.496

-1.386

-2.040

-2.543

-2.943

-3.267

-3.536

-3.763

-3.955

-4.122

-4.266

-4.393

-4.505

-4.604

-4.693

-4.773

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

195.36 DEG K

1.352 KCAL

2.3940 KCAL

BOILING POINT 239.68 DEG K 

HEAT OF VAPOR. 5.581 KCAL 

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 15ft COMPILED 

3-31-67
80. THERMO DYNAMIC PROPERTIES OF MINERALS

METHANE (IDEAL GAS) GRAM FORMULA WEIGHT 16.043

CH : Ideal gas 298.15° to 2000°K. 

4

TEMP. H -H

T 298 

OEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFVO

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.923

960

138

454

897

458

9.125

10.887

12.732

14.652

16.637

18.679

20.772

22.910

25.086

27.298

29.540

44.49

0.05

47.14

49.45

51.60

53.62

55.55

57.38

59.14

60.82

62.42

63.96

65.43

66.84

68.19

69.49

70.73

71.93

73.08

44.49

0.05

44.84

45.53

46.37

47.26

48.18

49.10

50.02

50.92

51.81

52.69

53.55

54.39

55.21 

 56.Cl 

56.79 

57.56 

58.31

 17.880 

0.080

 18.621

 19.301

 19.901

 20.414

 20.842

 21.192

 21.467

 21.680

 21.839

 21.956

 22.035

 22.089

 22.122

 22.132

 22.129

 22.111

 22.084

-12.126

0.090

-10.046

-7.823

-5.470

-3.021

-0.508 

2.056 

4.653

7.276

9.918

12.568

15.229

17.893

20.555

23.227

25.893

28.562

31.228

8.889

0.066

5.489

3.419

1.993

0.943

0.139

-0.499

-1.017

-1.446

-1

-2

806

2.113

2.377

607

-2 808

2.986

3.144

3.285

3.412

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

9C.60 DEC K 

0.224 KCAL 

2.3960 KCAL

BOILING POINT 111.70 DEG K 

HEAT OF VAPOR. 1.9«8 KCAL 

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 158 COMPILED 

3-31-67
PROPERTIES AT HIGH TEMPERATURES 81

CENENTITE GRAM FORMULA WEIGHT 179.552

Fe C: Crystals 298.15° to 1500°K.

TEMP. 

DEC K

298.15

H -H 

T 298 

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

flOO

900

1000

1100

l?00

13CO

1400

1500

2.690

5.670

8.390

11.150

13.940

16.760

19.610

22.490

25.400

28.340

31.310

34.310

S -<G -H )/1 

T T 298 

(CAL/DEG-GFM

24

0

32

39

44

48

52

55

58

61

63

66

68

70

.96

.80

.72

.37

.33

.58

.31

.62

.63

.37

.91

.26

.46

.53

24

0

25

2B

30

32

34

37

39

40

42

44

46

47

.96

.80

.99

.03

.35

.65

.88

.00

.02

.92

.74

.46

.10

.66

FORMATION

r

FROM

ENTHALPY FREE 

(KCAL/GFW)

5

0

6

7

7

7

6

6

5

3

2

2

2

2

.960

.320

.495

.131

.283

.248

.969

.362

.226

.443

.307

.238

.132

.018

4

0

4

3

2

2

I

0

0

-0

-0

-0

-0

-1

THE ELEMENTS

ENERGY

.759

.410

.262

.634

.917

.179

.467

.840

.273

. 116

.427

.673

.900

.097

LOG

-3.

0.

-2.

-1.

-1.

-0.

-0.

-0.

-0.

0.

0.

0.

0.

0.

K

488

301

329

589

063

680

401

204

060

023

078

113

141

160

MELTING POINT 

HEAT OF FUSION

.H -H 

298 0

DEG K 

KCAL 

4.3290 KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.55521 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

IRON.... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665, 

M. P. CELTA 1809 DEG K.

REFERENCES 74 68 162

68

COMPILED 

1-12-67
82 THERMODYNAMIC PROPERTIES OF MINERALS

ACANTHITE (ARGENTITE) GRAM FORMULA WEIGHT 247.804

:=================================

Ag_S: Monoclinic crystals 298.15° to 452°K. Cubic crystals 

(argentite) 452° to 1000°K.

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

400 1. 

452 3.

452 

500 

600 

700 

800 

900 

1000

4. 

5. 

7. 

9. 

11. 

13. 

15.

000

970 

085

095 

140 

300 

460 

630 

790 

960

S -<G -H I/ 1 

T T 298 

<CAL/DEG-GFk)

34

0

39 

42

44 

46 

50 

54 

57 

59 

61

.14 

.10

.80 

.42

.65 

.85 

.79 

.12 

.02 

.56 

.64

34 

0

34 

35

35 

36 

38 

40 

42 

44 

45

.14 

.10

.87 

.59

.59 

.57 

.62 

.61 

.48 

.24 

.68

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

-7.

0.

-8. 

-8.

-7. 

-7. 

-7. 

-7.

-20. 

-19. 

-19.

731 

210

120 

150

140 

129 

105 

045

020 

668 

349

-9

0

-10 

-10

-10 

-10

-11

-12

-14 

-13 

-12

THE ELEMENTS

ENERGY

.562 

.200

.174 

.436

.436 

.795 

.538 

.270

.242 

.531 

.665

LOG K

7.009 

0.147

5.559 

5.046

5.046 

4.718 

4.203 

3.831

3.891 

3.286 

2.768

MELTING POINT 1061 DEC K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.81716 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SILVER..... M. P. 1234 OEG K.

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 74 52 47

139

COMPILED 

2-12-67
CHALCOCITE

PROPERTIES AT HIGH TEMPERATURES 83

GRAM FORMULA WEIGHT 159.144

Cu2 S: Orthorhombic crystals 298.15° to 376°K. Hexagonal crystals 

376° to 623°K. Cubic crystals 623° to melting point 1403°K.

TEMP. H -H

T 298 

DEG K IKCAL)

J -(G -H )/T 

T T 298 

(CAL/DEG-GFK)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

28.86

0.50

28.86

0.50

-19.148 

0.300

-20.734 

0.340

15.199

0.249

376

376

400 

500 

600 

623

623 

700

800 

900 

1000

1100 

1200 

1300

1400

1.520

2.440

3.000 

5.320 

7.650 

8.180

8.380 

9.950

11.980 

14.010 

16.040

18.080 

20.110 

22.140

24.170

33.39

35.84

37.28 

42.45 

46.70 

47.57

47.89 

50.26

52.98 

55.36 

57.51

59.45 

61.22 

62.84

64.34

29.35

29.35

29.78 

31.81 

33.95 

34.44

34.44 

36.05

38.00 

39.79 

41.47

43.01 

44.46 

45.81

47.08

-19.650

-18.730

-18.457 

-18.306 

-18.092 

-18.040

-17.840 

-17.862

-30.957 

-30.705 

-30.496

-30.299 

-30.123 

-29.978

-36.125

-21.190

-21.190

-21.351 

-22.092 

-22.867 

-23.052

-23.052 

-23.689

-25.739 

-25.090 

-24.502

-23.902 

-23.317 

-22.764

-22.013

12.317

12.317

11.666 

9.656 

8.329 

8.087

8.087 

7.396

7.031 

6.093 

5.355

4,749 

4.247 

3.827

3.436

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1403 OEG K

KCAL

KCAL

BOILING POINT 

HEAT OF VAPOR, 

MOLAR VOLUME

OEG K 

KCAL 

0.65667 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

COPPER..... M. P. 1357 OEG K.

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 74 78

160

20

127

COMPILED 

5-06-67
84 THERMODYNAMIC PROPERTIES OF MINERALS

TROILITE GRAM FORMULA WEIGHT 87.911

FeS: a crystals 298.15° to 411°K. 0 crystals 411° to Curie point 

598°K. y crystals 598° to melting point 1468°K.

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000 

UNCERTAINTY

400 1.470 

411 1.640

411 

500 

598

598 

600 

700 

800 

900 

1000

1100 

1200 

1300 

1400 

1468

1468 

1500

1600 

1700 

1800 

1900 

2000

MELTING 

HEAT OF 

H -H

2.210 

3.760 

5.460

5.580 

5.610 

7.020 

8.430 

9.840 

11.250

12.680 

14.150 

15.680 

17.260 

18.350

26.080 

26.620

28.320 

30.020 

31.720 

33.420 

35.120

POINT 

FUSION

S -(G -H )/l 

T T 298 

(CAL/DEG-GFVi)

14.42 

0.04

18.63 

19.05

20.44 

23.85 

26.95

27.15 

27.21 

29.38 

31.26 

32.92 

34.41

35.77 

37.05 

38.28 

39.45 

40.21

45.47

45.84

46.93 

47.96 

48.93 

49.85 

50.73

1468 

7.730

14.42 

O.C4

14.95 

15.06

15.06 

16.33 

17.82

17.82 

17.86 

19.35 

20.72 

21.99 

23.16

24.24 

25.26 

26.22 

27.12 

27.71

27.71 

28.09

29.23 

30.30 

31.31 

32.26 

33.17

DEG K 

KCAL 

KCAL

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-24.130 

0.350

-24.404 

-24.391

-23.821 

-23.728 

-23.580

-23.460 

-23.464 

-23.644

-36.929 

-36.937 

-37.128

-37.521

-37.665 

-37.400 

-37.107 

-36.897

-29.167 

-29.045

-28.663

-28.582 

-28.322

-31.752 

-31.553

BOILING POINT 

HEAT OF VAPOR 

MOLAR VOLUME

-24.219 

0.360

-24.258 

-24.253

-24.253 

-24.354 

-24.492

-24.492 

-24.495 

-24.655

-25.999 

-24.626 

-23.254

-21.840

-20.419 

-19.006 

-17.605 

-16.701

-16.701 

-16.388

-15. 546

-14.727 

-13.909

-12.942 

-11.969

0.43499

LOG K

17.753 

0.264

13.254 

12.896

12.896 

10.645 

8.951

8.951 

8.922 

7.698 "7:i02 

5.980 

5.082

4.339

3.719 

3.195 

2.748 

2.486

2.486 

2.388

2.124

1.893 

1.689

1.489 

1.308

DEG K 

KCAL 

CAL/BAR

298 0 

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 DEG K. 

SULFUR..... ORTHO-MCNO 368.54, M. P. MONO 388.36,

B. P. 717.75 DEG K.

REFERENCES 74 53 133

2

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 85

PYRITE

FeS 2 : Crystals 298.15° to 1000°K.

GRAM FORMULA WEIGHT 119.975

=============== =============

TEMP. H -H

T 298 

DEG K (KCAL)

4CO 

500 

600 

700 

800 

900 

1000

1.670

3.350

5.060

6.820

8.650

10.550

12.520

! -<G -H . 

T T 298 

(CAL/DEG-GFH)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFVI)

298.15 0.000 

UNCERTAINTY

12.65 

O.C3

12.65 

O.C3

-41.000 

0.400

-38.296 

0.410

28.071 

0.301

17.46

21.20

24.32

27.03

29.47

31.71

33.79

13.28

14.50

15.89

17.29

18.66

19.99

21.27

 42.183

 43.056

 43.788

 44.418

 71.064

 71.136

-37.311

-35.988

-34.504

-32.909 

:33.~655"

-28.973

-24.298

20.386

15.730

12.568

10.274 ~~9.~194

7.036

5.310

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

2.3020 KCAL MOLAR VOLUME 0.57218 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 OEG K. 

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36,

B. P. 717.75 DEG K.

REFERENCES 74 52 154 COMPILED 

2-12-67
86 THERMODYNAMIC PROPERTIES OF MINERALS 

HYDROGEN SULFIDE (IDEAL GAS) GRAM FORMULA WEIGHT 34.080

H S: Ideal gas

TCMD 1 CBr 

DEG K

298il5

H n LJ

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.849

1.718

2.627

3.579

4.575

5.611

6.687

7.799

8.942

10.114

11.312

12.532

13.771

15.029

16.302

17.590

18.890

298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/OEG-GFW)

49.16

0.05

51.61

53.54

55.20

56.67

58.00

59.22

60.35

61.41

62.40

63.34

64.23

65.07

65.87

66.63

67.36

68.06

68.72

49.16

0.05

49.48

50.11

50.82

51.56

52.28

52.98

53.66

54.32

54.95

55.56

56.15

56.72

57.26

57.79

58.30

58.80

59.28

FREE ENERGY LOG K

(KCAL/GFW)

-4.930

0.150

-5.897

-6.666

-7.313

-7.863

-21.398

-21.512

-21.595

-21.652

-21.687

-21.704

-21.707

-21.701

-21.688

-21.666

-21.640

-21.608

-21.574

-8.016

0.160

-8.983

-9.666

-10.203

-10.640

-12.219

-11.064

-9.898

-8.727

-7.549

-6.365

-5.190

-4.010

-2.832

-1.654

-0.479

0.696

1.870

5.876

o.ill

4.908

4.225

3.717

3.322

3.338

2.687

2.163

1.734

1.375

1.070

0.810

0.584

0.387

0.213

0.058

-0.080

-0.204

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT DEG K

. KCAL HEAT OF VAPOR. KCAL

2.3810 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR'..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 148 158 158 COMPILED 

4-15-67
ALABANDITE

= = 3* = 3 = e3Z3 = S a

PROPERTIES AT HIGH TEMPERATURES 87

GRAM FORMULA WEIGHT 87.002

MnS: Crystals 298.15° to melting point 1803°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

DEG K (KCAL)

J -IG -H )/T 

T T 298 

(CAL/DEG-GFH)

ENTHALPY FREE ENERGY 

(KCAL/GFM)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

220

440

690

970

6.260

7.560

8.850

10.150

11.450

12.770

14.130

15.530

18.69

0.40

22.21

24.93

27.21

29.18

30.90

32.43

33.79

35.03

36.16

37.22

38.23

39.19

18.69

0.40

19.16

20.C5

21.C6 

22.08 

23.07 

24.03 

24.94

25.80

26.62

27.40

28.14

28.84

51.115

0.200

 52.141 

0.240

38.220

0.176

-51.694 

-52.108 

-52.519 

-52.744

-66.099 

-66.092

-66.658

-66.706 

-66.755 

-66.800

-67.392

-68.000

-52.464 

-52.609 

-52.746 

-52.691

-53.881 

-52.350

-50.824

-49.232 

-47.649 

-46.053

-44. 446

-42.773

28.665 

22.995 

19.213 

16.451

14.719 

12.712

11.108

9.782 

8.678 

7.742

6.938

6.232

1600 

1700 

18CO 

1803

1803 

1900 

2000

16.970 

18.450 

19.970 

?0.020

26.260 

27.810 

29.410

40.12 

41.02 

41.89 

41.91

45.37 

46.21 

47.03

29.51 

30.17 

30.80 

30.fll

30.81 

31.57 

32.32

-71.608 

-71.677 

-71.707 

-71.710

-65.470 

-65.417 

-65.368

-40.795 

-38.867 

-36.936 

-36.910

-36.910 

-35.340 

-33.744

5.572 

4.997 

4.485 

4.470

4.470 

4.065 

3.687

MELTING POINT 

HEAT OF FUSION 

H !-H

1803 DEG K BOILING POINT DEG K

6.240 KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.51291 CAL/BAR

298 0 

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410,

M. P. DELTA 1517 DEG K. 

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36,

B. P. 717.75 DEG K.

78 2

30

COMPILED 

4-15-67
88 THERMODYNAMIC PROPERTIES OF MINERALS 

MILLERITE GRAM FORMULA WEIGHT 90.774

NiS: Crystals 298.15° to 600°K.

TEMP. H -H

T 298 

DEG K (KCAL)

> -<G -H 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

1.170

2.380

3.660

15.80

1.00

19.17

21.87

24.20

15.80

1.00

16.24

17.11

18.10

 20.284 

1.000

 20.889

 21.325

 21.683

-20.600 

1.050

-20.675

-20.571

-20.386

15.100

0.770

11.296

8.992

7.426

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.40368 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

NICKEL..... CURIE P. 631. M. P. 1726 DEG K. 

SULFUR..... ORTHO-PCNO 368.54» M. P. MONO 388.36. 

B. P. 717.75 DEG K.

REFERENCES 74 52

173

140 COMPILED 

4-15-67
GALENA

PROPERTIES AT HIGH TEMPERATURES 89

GRAM FORMULA WEIGHT 239.254

PbS: Crystals 298.15° to melting point 1385°K.

TEMP. H -H

T 298 

OEG K (KCAL)

400 

,500 

600 

700 

SCO 

900

1.240

2.450

3.710

5.040

6.430

7.880

; -(G -H )/T 

T T 2S8 

(CAL/DEG-GFW)

FCRMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0. 

UNCERTAINTY

000 21.

0.

84 

30

21.

0.

84 

30

-23. 

0.

353 

230

-22.

0.

962

200

16.

0.

832 

147

25.42

28.12

30.41

32.46

34.32

36.02

22.32

23.22

24.23

25.26

26.28

27.26

-23.877

 24.271

 24.560

V257903'

: 397062~

-38.762

-22.811

-22.502

-22. 117 

^217553'

-19.971

12.463 

9.836 

8.056 '"57713 

6.033 

4.850

MELTING POINT 

HF-IAT OF FUSION

H -H 

298 0

1385 DEC K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.75263 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 6C0.6, 8. P. 2023 OEG K.

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36,

8. P. 717.75 OEG K.

REFERENCES 74 78 146

92

COMPILED 

2-12-67
90 THERMODYNAMIC PROPERTIES OF MINERALS

HERZENBERGITE GRAM FORMULA WEIGHT 150.754 

SnS: a crystals 298.15° to 875°K. 0 crystals 875° to melting 

point 1153°K. Liquid 1153° to 1200°K.

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 1.210 

500 2.450 

600 3.750 

700 5.090 

800 6.520 

875 7.650

875 

900 

1000 

1100 

1153

1153 

1200

7.810 

8.140 

9.470 

10.840 

11.580

19.130 

19.970

S -IG -H )/T 

T T 298 

(CAL/DEG-GFH)

IB 

0

21 

24 

26 

29 

30 

32

32 

32 

34 

35 

36

42 

43

.36 

.20

.85 

.61 

.98 

.05 

.96 

.30

.49 

.86 

.26 

.57 

.22

.77 

.49

18 

0

18 

19 

20 

21 

22 

23

23 

23 

24 

25 

26

26

26

.36 

.20

.82 

.71 

.73 

.78 

.81 

.56

.56 

.82 

.79 

.72

.18

.18 

.85

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFM)

-25. 

0.

-26. 

-26. -2?:

-28. 

-417 

-41.

-41. 

-41.

-40. 

-40. 

-40.

-32. 

-32.

464 

350

043 

452

523

330

170 

111 

902 

665 

538

988 

659

-24

0

-24 

-24

THE ELEMENTS

ENERGY

.999 

.360

.813 

.458

""??. 715 

-22.926

-ff 

-21

-21 

-21 

-18 

-16 

-15

-15 

-14

.337 

.673

.673 

.087 

.868 

.679 

.572

.572 

.825

LOG K

18 

0

13

10

7

6 

5

5 

5 

4 

3 

2

2 

2

.325 

.264

.557 

^691

.158 

7575 

.413

.413 

.121 

.124 

.314 

.952

.952 

.700

MELTING POINT 1153 DEC K 

HEAT OF FUSION 7.550 KCAL

H -H KCAL 

298 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.69336 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36.

B. P. 717.75 OEG K. 

TIN...;.... M. P. 505 DEC K.

REFERENCES 74 78 133 COMPILED 

1-12-67
PROPERTIES AT HIGH TEMPERATURES 91

SPHALERITE

«== 3*=; = = C3 3 = 53

GRAM FORMULA WEIGHT 97.434

= = == 33 = == = = X = = = === = = = = = == = = = = = ===== = = = = = = = = = = = = =

ZnS: Cubic crystals 298.15° to 1200°K. Wurtzite is the stable 

phase of ZnS above 1293 ± 5°K.

T CM D 14 _UI 1 t~ r H rl

T 298

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

SCO

600

700

800

900

1000

1100

1200

1300

1.L40

2.320

3.530

4.760

6.010

7.280

8.560

9.860

11.170

12.500

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY FREE ENERGY

(CAL/DEG-GFK)

13.77

0.20

17.05

19.68

21.89

23.79

25.46

26.95

28.30

29.54

30.68

31.74

13.77

0.20

14.20

15. C4

16.01

16.99

17.95

18.86

19.74

20.58

21.37

22.12

LOG K

(KCAL/GFW)

-49.750

1.000

-50.349

-50.748

-51.064

-53.094

-66.419 '

-66.337

-66.248

-66.141

-93.535

-93.147

-48.623

1.010

-48.207

-47.619

-46.971

-46.251

-46.473

-43.973

-41.494

-39.031

-36.125

-31.346

35.642

0.740

26.339

20.814

17.109

14.440

12.696

10.678

9.068

7.755

6.579

5.270

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DBG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.56955 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MONO 368.54* M. P. MONO 388.36,

B. P. 717.75 DEG K. 

ZINC....... M. P. 692.7, B. P. 1184 OEG K.

REFERENCES 123 78 38

126

COMPILED 

5-18-67
92 THERMODYNAMIC PROPERTIES OF MINERALS

WURTZITE GRAM FORMULA WEIGHT 97.434

ZnS: Crystals 298.15° to 1300°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

400 1. 

500 2. 

600 3. 

700 4. 

800 6. 

900 7. 

1000 8.

1100 9. 

1200 11. 

1300 12.

000

160 

340 

550 

780 

030 

290 

570

870 

180 

500

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

16. 

1.

19. 

22. 

24. 

26. 

28. 

29. 

31.

32.

33. 

34.

56

OC

90 

54 

74 

64 

31 

79 

14

38 

52

58

16

1

17 

17 

18 

19 

20 

21 

22

23 

24 

24

.56

.CO

.CO 

.66 

.82 

.81 

.77 

.69 

.57

.41 

.20 

.96

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

-46. 

0.

-46. 

-47. 

-47.

-49.

095 

200

674

073 

389

419

-~6"2.744 

-62.672 

-62.583

-62.476 

-89.870 

-89.492

-45

0

-45 

-45 

-45

-44 -4^5 

-42 

-40

-38 

-35 

-31

THE ELEMENTS

ENERGY

.800 

.360

.672 

.374 

-.an .006 

.864 

.669

.490 

.868 

.383

LOG K

33.572 

0.264

24.954 

19.833 

16.393

Y3 .^Y6

10.409 

8.888

7.647 

6.532 

5.276

MELTING POINT 

HEAT OF.FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.56993 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFURi..... ORTHO-KCNO 368.54, M. P. MONO 388.36,

B. P. 717.75 DEG K. 

ZINC....... M. P. 692.7, B. P. 1184 DEG K.

REFERENCES 123 132 COMPILED 

5-08-67
CORUNDUM

PROPERTIES AT HIGH TEMPERATURES 93

GRAM FORMULA WEIGHT 101.961

= a^ = = n s=

Al O : (Corundum), crystals 298.15° to melting point 2345°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2.147

4.577

7.193

9.940

12.778

15.685

18.644

21.644

24.677

27.735

30.814

33.910

37.020

40.140

43.269

46.405

49.547

S -(G -H )/ 

T T 298 

(CAL/DEG-GFW)

12.18

0.03

18.34

23.76

28.52

32.75

36.54

39.97

43.08

45.94

48.58

51.03

53.31

55.45

57.45

59.35

61.13

62.83

64.44

12.18

O.C3

12.98

14.60

16.53

18.55

20.57

22.54

24.44

26.27

28.02

29.70

31.30

32.84

34.32

35.73

37.10

38.41

39.67

FORMATION FROM THE ELEMENTS

r 

ENTHALPY FREE ENERGY LOG K 

(KGAL/GFW)

-400.400

0.300

-400.559

-400.487

-400.322

-400.112

-399.905

-399.743 -^Tj^^rj-

-404.467

-404.224

-403.967

-403.702

-403.431

-403.154

-402.875

-402.596

-402.320

-402.046

-378.082

0.310

-370.640

-362.896

-355.393

-347.920

-340.479

-333.061 -1257295-

-317.364

-309.456

-301.568

-293.701

-285.855

-278.023

-270.212

-262.413

-254.634

-246.871

277.141

0.227

202.508

158.621

129.451

108.625

93.014

80.878

 7i:B9l

63.054

56.359

50.698

45.849

41.649

37.976

34.738

31.861

29.290

26.977

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2345 OEG K 

KCAL 

2.3940 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.61126 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

ALUMINUM... M. P. 933 OEG K.

REFERENCES 39 78

39

103 COMPILED 

6-13-66
94 THERMODYNAMIC PROPERTIES OF MINERALS 

BOEHMITE GRAM FORMULA WEIGHT 59.988

AIO(OH): Crystals 298.15° to 500°K.

TEMP. H -H

T 298 

06G K (KCAU

298.15 0.000 

UNCERTAINTY

400 1.558

500 3.425

FORMATION FROM THE ELEMENTS

5 -<G -H I/T 

T T 298 ENTHALPY FREE ENERGY LOG K 

(CAL/OEG-GFW) (KCAL/GFW)

11.58

0.05

16. 06

20.20

11.58

0.05

12.16

13.35

 235.500 

3.500

 235.629

 235.474

 217.674 

3.510

 211.667

 205.550

159.559

2.573

115.649

89.846

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

H -H 2.110 KCAL MOLAR VOLUME 0.46690 CAL/BAR

298 0

TRANSITIONS IN REFERENCE STATE ELEMENTS 

ALUMINUM... M. P. 933 OEG K.

REFERENCES 74 78 141 COMPILED 

2-12-67
PROPERTIES AT HIGH TEMPERATURES 95

GIBBSITE GRAM FORMULA WEIGHT 78.004

Al(OH) Crystals 298.15° to 400°K.

TEMP. H -H

T 298 

DEG K (KCAL)

J -(G -H )/T 

T T 298 

(CAL/DEG-GFH)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 2.505

16.75

0.10

23.93

16.75

0.10

17.67

-306.380 

0.300

-306.631

-273.486 

0.310

200.470

0.227

-262.304 143.316

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

3.040 KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.76377 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

ALUMINUM... M. P. 933 DEG K.

REFERENCES 74 78 12 COMPILED 

2-12-67
96 THERMODYNAMIC PROPERTIES OF MINERALS 

BORIC OXIOE GRAM FORMULA WEIGHT 69.620

^========3==================

B-O-: Crystals 298.15° to melting point 723°K. Liquid 723° to 

2000°K.

TFMP i 1 C n r 

OEG K

2981.15

n H 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

723

723

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

1.712

3.671

5.872

8.339

8.950

14.210

16.673

19.853

23.006

26.128

29.217

32.284

35.340

38.394

41.448

44.503

47.549

50.603

53.648

POINT 

FUSION

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY FREE ENERGY

(CAL/DEG-GFW)

12.87

0.10

17.79

22.15

26.15

29.95

30.80

38.08

41.32

45.07

48.39

51.37

54.06

56.51

58.78

60.88

62.85

64.70

66.45

68.01

69.66

723

5.260 

2.2180

12.87

0.10

13.51

14.81

16.36

18.04

18.42

18.42

20.48

23. Cl

25.38

27.62

29.71

31.68

33.54

35.28

36.94

38.52

40.03

41.38

42.84

OEG K 

KCAL 

KCAL

(KCAL/GFH)

-303.640 -284.728

0.400 0.410

-303.668 -278.263

-303.631 -271.914

-303.513 -265.576

-303.245 -259.273

-303.154 -257.825

-297.894 -257.825

-297.198 -253.600

-296.371 -248.205

-295.628 -242.888

-294.973 -237.654

-294.394 -232.470

-293.880 -227.325

-293.414 -222.229

-292.989 -217.152

-292.596 -212.105

-292.234 -207.082

-291.912 -202.100

-291.606 -196.946

-291.329 -189.592

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME 0.65057

LOG K

208.711

0.301

152.035

118.853

96.736

80.948

77.935

77.935

69.280

60.272

53.083

47.217

42.338

38.217

34.691

31.639

28.972

26.622

24.538

22.654

20.718

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

80RON...... M. P. BETA 2300 CEG K.

REFERENCES 148 148

159

148

159

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 97

BARIUM OXIDE

BaO: Crystals

TEMP.

DEG K

298.15

H _un 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

flOO

900

1000

1100

1200

1300

1400

1500

1600

1700

IflOO

1900

2000

1.170

2.380

3.660

4.980

6.300

7.620

8.950

10.300

11.680

13.090

14.520

15.970

17.440

18.920

20.420

21.930

23.450

GRAM FORMULA WEIGHT 153.339

======================= 3============== =============

298.15° to melting point 2291°K.

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/DEG-GFW)

16.80

0.30

20.16

22.87

25.20

27.23

29.00

30.55

31.95

33.24

34.44

35.57

36.63

37.63

38.58

39.47

40.33

41.15

41.93

16.80

0.30

17.23

18.11

19.10

20.12

21.12

22. C8

23. CO

23.88

24.71

25.50

26.26

26.98

27.68

28.34

28.99

29.61

30.20

FREE ENERGY LOG K

(KCAL/GFW)

-139.060

0.700

-138.908

-138.741

r_l_3_8^_55l .

-138.495

-138.347

~^3Sjt2J]

-140.070

-139.890

-139.684

-139.452

-139.204

-138.940

-138.658

-138.369

-138.064

-YY^ . 44^

-174.038

-131.994

0.770

-129.595

-127.293

-125.018

-122.756

-120.526

~H3a.3Ql

-116.048

-113.653

-111.279

-108.924

-106.580

-104.269

-101.959

-99.670

-97.405 ~-96Tol4 

-91.897

96.754

0.564

70.807

55.640

45. 538

38.326

32.926

2S.s7.2J.

"25.362

22.581

20.267

18.312

16.638

15.192

13.927

12.813

11.827

11 .044

10.042

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.61157 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

BARIUM..... ALPHA-BETA 643, M. P. BETA 983, B. P. 1895 DEG K.

REFERENCES 74 78 108 COMPILED 

4-15-67
98 THERMODYNAMIC PROPERTIES OF MINERALS 

BROMELLITE GRAM FOR'MULA WEIGHT 25.012

BeO: Crystals 298.15° to 2000°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600'

17CO

1800

1900

2000

0.727

1.594

2.567

3.614

4.716

5.855

7.019

8.200

9.399

10.614

11.847

13.098

14.366

15.652

16.955

18.275

19.613

S -<G -H )/1 

T T 298 

(CAL/DEG-GFW)

3.37

0.02

5.45

7.38

9.15

10.77

12.24

13.58

14.81

15.93

16.97

17.95

18.86

19.72

20.54

21.32

22.07

22.78

23.47

3.37

O.C2

3.64

4.19

4.88

5.61

6.34

7.07

7.79

8.48

9.14

9.78

10.40

10.99

11.56

12.11

12.65

13.16

13.66

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-143.100

0.150

-143.175

-143.173

-143.123

-143.040

-142.932

-142.815

-142.704

-142.613

-142.528

-142.451

-142.390

-142.335

-145.075

-144.980

-144.872

-144.749

-144.611

-136.121

0.160

-133.724

-131.361

-129.005

-126.655

-124.326

-122.002

-119.688

-117.402

-115.113

-112.829

-110.551

-108.285

-105.900

-103.428

-101.001

-98.579

-96.142

LOG K

99.779

0.117

73.063

57.418

46.990

39.544

33.964

29.626

26.158

23.325

20.965

18.968

17.258

15.777

14.465

13.297

12.263

11.339

10.506

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2820 OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

0.6870 KCAL MOLAR VOLUME 0.19859 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

BERYLLIUM.. M. P. 1556 DEG K.

REFERENCES 157 78 

14fl

22

66

COMPILED 

4-15-67
BISMITE

PROPERTIES AT HIGH TEMPERATURES 99

GRAM FORMULA WEIGHT 465.958

==3X=33==ZZ=========

Bi 2°3 : Crystals 298.15° to melting point 1098°K.

FORMATION FROM THE ELEMENTS 

> -(G -H )/T - 

T T 298 ENTHALPY FREE ENERGY LOG K 

(CAL/OEG-GFW) (KCAL/GFM)

TEMP. H -H

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

2.770

5.630

8.550

11.550

14.620

36.20

0.50

44.19

50.56

55.89

60.51

64.61

36.20

0.50

37.26

39.30

41.64

44.01

46.33

 137.160 

0.300

 136.776

 136.392

 1417285"

 140.952

 140.579

 117.955 

0.350

 111.458

 105.167

-91.292

-84.227

86.463

0.257

60.898 

45.968 

"35^849 

28.502 

23.010

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1098 DEG K BOILING POINT 2040 OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.1885 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

BISMUTH.... M. P. 544.5, 8. P. 1852 DEG K.

REFERENCES 74 158 158

105

COMPILED 

5-06-67
100 THERMODYNAMIC PROPERTIES OF MINERALS 

CARBON MONOXIDE GRAM FORMULA WEIGHT 28.011

CO: Ideal gas 298.15° to 2000°K.

TEMP. H -H

T 298 

OEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFK)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.711

1.417

2.137

2.873

3.627

4.397

5.183

5.983

6.794

7.616

8.446

9.285

10.130

10.980

11.836

12.697

13.561

47.22

0.01

49.27

50.85

52.16

53.29

54.30

55.20

56.03

56.79

57.50

58.16

58.77

59.35

59.90

60.41

60.90

61.37

61.81

47.22 

O.C1

47.49

48.01

48.60

49.19

49.76

50.32

50.85

51.36

51.84

52.20

52.74

53.16

53.57

53.96

54.33

54.69

55.03

 26.416

0.020

 26.317

 26.295

 26.331

 26.409

 26.513

 26.637

 26.770

 26.913

 27.062

 27.217

 27.375

 27.536

 27.699

 27.864

 28.032

 28.200

 28.371

-32.781 

0.030

-34.973

-37.141

-39.308

-41.465

-43.609 

'45.739

-47.854

-49.956

-52.044

-54.120

-56.183

-58.235

-60.277

-62.309

-64.330

-66.340

-68.345

24.029

0.022

19.108

16.234

14.318

12.946

11.913

11.107

10.459

9.925

9.479

9.098

8.770

8.485

8.233

8.010

7.811

7.631

7.468

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

68.05 OEG K BOILING POINT 81.61 OEG K

0.200 KCAL HEAT OF VAPOR. 1.444 KCAL

2.C720 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 158 COMPILED 

2-12-67
PROPERTIES AT HIGH TEMPERATURES 101

CARBON DIOXIDE GRAM FORMULA WEIGHT 44.010

CO : Ideal gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.958

1.987

3.087

4.245

5.453

6.702

7.984

9.296

10.632

11.988

13.362

14.750

16.152

17.565

18.987

20.418

21.857

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

51.06

0.01

53.82

56.11

58.11

59.90

61.51

62.98

64.33

65.58

66.74

67.83

68.85

69.80

70.71

71.57

72.38

73.15

73.89

51. C6

0.01

51.42

52.14

52.97

53.83

54.69

55.53

56.35

57.13

57.88

58.61

59.30

59.97

60.61

61.23

61.83

62.41

62.96

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-94.051

0.030

-94.067

-94.088

-94.121

-94.166

-94.215

-94.267

-94.318

-94.368

-94.416

-94.466

-94.512

-94.559

-94.604

-94.647

-94.693

-94.739

-94.785

-94.257

0.040

-94.326

-94.387

-94.445

-94.495

-94. 539

-94.577

-94. 609

-94.636

-94.657

-94.675

-94.688

-94.700

-94.710

-94.713

-94.716

-94.716

-94.715

LOG K

69.092

0.029

51.537

41.257

34.401

29.503

25.827

22.966

20.677

18.802

17.239

15.916

14.781

13.798

12.937

12.176

11.500

10.895

10.350

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

2.2380 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158

58

158 COMPILED 

5-06-67
102 

LIME

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 56.079

CaO: Crystals 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

SCO

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.100

2.230

3.400

4.600

5.820

7.040

8.270

9.520

10.800

12.110

13.430

14.760

16.100

17.440

18.780

20.130

21.480

S -(G -H )/' 

T T 298 

(CAL/DEG-GFW)

9.50

0.50

12.67

15.19

17.32

19.17

20.80

22.23

23.53

24.72

25.84

26.88

27.86

28.78

29.64

30.46

31.22

31.95

32.65

9.50

0.50

.9.92

10.73

11.65

12.60

13.52

14.41

15.26

16.07

16.84

17.56

18.27

18.94

19.58

20.20

20.79

21.36

21.91

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-151.790

0.300

-151.702

-151.622

-151.555

-151.509

=1517523

-151.540

-151.623

-151.753

-153.657

-153.515

-153.367

-153.213

-153.051

-152.892

-189.016

-188.613

-188.213

-144.352

0.340

-141.821

-139.364

-136.918

-134.482 " -T327C5?"

-129.611

-127.171

-124.724

-122.132

-119.490

-116.893

-114.282

-111.696

-109.127

-105.625

-101.004

-96.432

105.812

0.249

77.487

60.916

49.872

41.987

36.075

31.474

27.793

24.780

22.243

20.088

18.248

16.651

15.257

14.029

12.825

11.618

10.538

MELTING POINT 2887 OEG K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.40067 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, I*. P. BETA 1123 f B. P. 1756 OEG K.

REFERENCES 74 78 65 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES L03 

PQRTLANOITE GRAM FORMULA WEIGHT 74.095

Ca(OH) Crystals 298.15° to 700°K.

TEMP. H -H

T 298 

DEC K (KCAL)

FORMATION FROM THE ELEMENTS

5 -<G -H )/T 

T T 298 ENTHALPY FREE ENERGY LOG K 

(CAL/DEG-GFW) (KCAL/GFH)

298.15 0.000 

UNCERTAINTY

AGO 

500 

(SOO 

700

2.300

4.720

7.240

9.830

19.93

0.10

26.56

31.95

36.58

40.54

19.93

0.10

20.81

22.51

24.51

26.50

 235.610 

0.450

 235.391

 235.086

 234.746

 234.401

 214.673 

0.460

157.359

0.337

 207.551 113.400

 200.626 87.693

 193.789 70.587

 186.966 58.373

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

3.3840 KCAL MOLAR VOLUME 0.79006 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 OEG K.

REFERENCES 74 78 54

55

COMPILED 

2-12-67
104 THERMODYNAMIC PROPERTIES OF MINERALS

CERIANITE

Ce02

TEMP. 

DEG K

: Crystals

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 

500 

600 

700 

800 

900 

1000

1100 

1200 

1300 

1400 

1500

1600 

1700 

1800

1.580 

3.220 

4.940 

6.720 

8.540 

10.380 

12.250

14.140 

16.050 

17.980 

19.930 

21.900

23.890 

25.910 

27.960

:SKSS3S=q

298.15°

== «« = = ==

to 1800°K.

S -<G -H )/T 

T T 298 

(CAL/DEG-GFH)

14.89 

0.02

19.44 

23.10 

26.23 

28.97 

31.40 

33.57 

35.54

37.34 

39.00 

40.55 

41.99 

43.35

44.63 

45.86 

47.03

14.89 

0.02

15.49 

16.66 

18.00 

19.37 

20.72 

22.04 

23.29

24.49 

25.62 

26.72 

27.75 

28.75

29.70 

30.62 

31.50

GRAM FORMULA WEIGHT

FORMATION

172.119

FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-260.180 

0.350

-259.996 

-259.780 

-259.540 

-259.308 

-259.086 

-258.910 

-258.757

-260.556 

-260.424 

-260.291 

-260.135 

-259.836

-259.523 

-259.185 

-258.824

-245.450 

0.700

-240.443 

-235.583 

-230.758 

-225.989 

-221.236 

-216.527 

-211.823

-207.038 

-202. 175 

-197. 336 

-192.491 

-187.674

-182.861 

-178.097 

-173.329

LOG K

179.919 

0.513

131.371 

102.973 

84.053 

70.557 

60.439 

52.580 

46.294

41.134 

36.821 

33.175 

30.049 

27.344

24.978 

22.896 

21.045

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.57010 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CERIUM..... BETA-GACMA 1003t M. P. 1077 DEG K.

REFERENCES 84 179 64 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 105

COBALT OXIDE GRAM FORMULA WEIGHT 74.933

CoO: Crystals 298.15° to melting point 2078°K.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500-

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.290

2.570

3.860

5.160

6.470

7.790

9.120

10.460

11.820

13.210

14.640

16.100

17.600

19.140

20.730

22.360

24.020

S -(G -H )/T 

T T 298 

(CAL/DEG-GFH)

12.66

0.08

16.38

19.24

21.59

23.59

25.34

26.90

28.30

29.58

30.76

31.87

32.93

33.94

34.91

35.84

36.75

37.63

38.48

12.66

0.08

13.15

14.10

15.16

16.22

17.25

18.24

19.18

20.07

20.91

21.71

22.47

23.21

23.91

24.58

25.23

25.86

26.47

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-57.100

0.300

-56.797

-56.537

-56.317

-56.134

-56.083

-55.970

-55.907

-55.904

-55.959

-51.430

0.310

-49.544

-47.759

-46.024

~$4t.3.22

-42.630

-40.962

-39.306

-37.642

-35.978

LOG K

37.699

0.227

27.070

20.875

16.764

"~11.646 ili.33.8

9.947

8.590

7.479

6.553

I56..Q88 ____ r24 t 2Q9 ____ 5_,.Z6a

-56.325

-56.291

-56.159

-55.968

-59.617

-59.402

-59.160

-32.633

-30.950

-29.268

-27.58.8

-25.852

-23.967

-22.099

5.094

4.509

3.998

3».547_

3.139

2.757

2.415

MELTING POINT 2078 DEC K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT OEG K 

HEAT CF VAPOR. KCAL 

MOLAR VOLUME 0.27820 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

COBALT..... ALPHA-BETA 700, CURIE P. 1394, M. P. BETA 1768 OEG K.

REFERENCES 74 78 18 COMPILED 

6-13-66
106 THERMODYNAMIC PROPERTIES OF MINERALS

ESKOLAITE

*=e»*==3*=3==ssates======

GRAM FORMULA WEIGHT 151.990

Cr 2 0 3 : 0 crystals 298.15° to melting point 2603°K.

TEMP. 

DEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

11CO

1200

1300

1400

1500

1600

1700

1800

1900

2000

2.740

5.540

8.380

11.280

14.230

17.210

20.240

23.320

26.430

29.550

32.670

35.790

38.920

42.050

45.180

48.320

51.460

S -<G -^H J/ 1 

T T 298 

(CAL/DEG-GFW)

19.40

0.30

27.34

33.59

38.76

43.22

47.16

50.67

53.86

56.80

59.51

62. CO

64.31

66.47

68.48

70.38

72.17

73.87

75.48

19.40

0.30

20.49

22.51

24.79

27.11

29.37

31.55

33.62

35.60

37.48

39.27

40.97

42.61

44.15

45.64

47.07

48.44

49.75

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFH)

-272.700

0.400

-272.228

-271.768

-271.377

-271.018

-270.689

-270.390

-270.104

-269.855

-269.665

-269.572

-269.566

-269.645

-269.814

-270.075

-270.427

-270.859

-271.361

-253.203

0.420

-246.634

-240.288

-234.024

-227.819

-221.673

-215.564

-209.488

-203.443

-197.411

-191.403

-185.398

-179.372

-173.333

-167.322

-161.247

-155.185

-149.076

185.602

0.308

134.754

105.030

85.243

71.128

60.558

52.346

45.784

40.420

35.953

32.178

28.942

26.134

23.676

21.511

19.578

17.850

16.290

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2603 OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.69527 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

CHROMIUM... M. P. 2130 DEG K.

REFERENCES 74 78 102 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 107

TENORITE

CuO: Crystals

T CUD U «.U 1 CPlr n *"n 

T 298

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

eoo

900

1000

1100

1200

1.110

2.260

3.460

4.710

6.000

7.320

8.680

10.120

11.600

GRAM FORMULA WEIGHT 79.539

298.15° to 1200°K.

FORMATION

S -(G -H )/T 

T T 298 ENTHALPY

(CAL/DEG-GFW)

10.19

0.05

13.40

15.95

18.14

20.07

21.79

23.34

24.77

26.15

27.43

10.19

O.C5

10.62

11.43

12.37

13.34

14.29

15.21

16. C9

16.95

17.76

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-37.140

0.300

-36.992

-36.822

-36.630

-36.404

-36.163

-35.920

-35.663

-35.343

-34.992

-30.498

0.310

-28.255

-26.084

-23.955

-21.862

-19.798

-17.762

-15.762

-13.792

-11.831

22.355

0.227

15.438

11.401

8.726

6.826

5.408

4.313

3.445

2.740

2.155

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K 

KCAL 

1.6970 KCAL

BOILING POINT DEC K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.29207 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

COPPER*.... M. P. 1357 OEG K.

REFERENCES 74 78 15 COMPILED 

2-12-67
108 

CUPRITE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 143.079

Cu2 0: Crystals 298.15° to melting point 1509°K.

TEMP. H -H

T 298 

OEG K (KCAL)

400

500

600

700

800

900

1000

1100

1200

1.720

3.470

5.280

7.150

9.050

11.000

13.020

15.120

17.320

> -<G -H 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

22.40 

0.40

22.40 

0.40

-40.400 

1.500

-35.022 

1.510

25.672 

1.107

27.36

31.27

34.66

37.54

40.08

42.38

44.50

46.50

48.42

23.06

24.33

25.86

27.33

28.77

30.16

31.48

32.75

33.99

 40.242

 40.087

 39.915

 39.704

 39.503

 39.300

 39.073

 38.793

 38.427

-33.209

-31.474

-29.820

-28.151

-26.514

-24.904

-23.321

-21.752

-20.210

18.145

13.757

10.862

8.789

7.243

6.047

5.097

4.322

3.681

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1509 OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.56016 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

COPPER..... M. P. 1357 OEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 109

WUSTITE GRAM FORMULA WEIGHT 68.887

Fe 94? 0: Crystals 298.15° to melting point 1650°K. Liquid 1650° 

to 2000°K.

TEMP.

DEG K

298.15

H un

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1650

1650

1700

1800

1900

2000

1.210

2.440

3.700

4.980

6.280

7.590

8.920

10.280

11.670

13.080

14.520

15.980

17.460

18.210

25.700

26.510

28.140

29.770

31.400

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/DEG-GFW)

13.76

0.10

17.24

19.99

22.29

24.26

25.99

27.54

28.94

30.23

31.44

32.57

33.64

34.64

35.60

36.06

40.60

41.08

42.02

42.90

43.73

13.76

0.10

14.22

15.11

16.13

17.15

18.14

19.11

20.02

20.89

21.72

22.51

23.27

23.99

24.69

25.02

25.02

25.49

26.39

27.24

28.03

FJIEE ENERGY LOG K

(KCAL/GFW)

-63.640

0.200

-63.393

-63.168

-62.977

-62.834

-62.757

-62.782

-62.964

-63.330

-63.472

-63.267

-63.055

-62.835

-62.618

-62.511

-55.021

-55.117

-54.869

-58.118

-57.933

-58.599

0.210

-56.911

-55.318

-53.768

-52.248

-50.738

-49.235

-47. 721

-46. 167

-44.611

-43.057

-41.517

-39.971

-38.463

-37.700

-37.700

-37.171

-36.131

-34.927

-33.697

42.954

0.154

31.095

24.179

19.585

16.312

13.861

11.956

10.429

9.173

8.125

7.238

6.481

5.824

5.254

4.994

4.994

4.779

4.387

4.018

3.682

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1650 OEG K BOILING POINT DEG K

7.490 KCAL HEAT OF VAPOR. KCAL

2.262 KCAL MOLAR VOLUME 0.28776 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033* ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 OEG K.

REFERENCES 74 78

148

70

148

COMPILED 

4-15-67
110 THF.RMODYNAMIC PROPERTIES OF MINERALS

FERROUS OXIDE STOICHIOMETRIC GRAM FORMULA WEIGHT 71.846 

FeO: Crystals 298.15° to 1650°K. Liquid 1650° to 2000°K.

TEMP. H -H

T 298 

OEG K (KCAL)

i -<G -H 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

<KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1.240

2.497

3.792

5.119

6.475

7.857

9.263

10.692

12.142

13.613

15.104

16.611

14.52

0.40

18.09

20.90

23.26

25.30

27.11

28.74

30.22

31.58

32.84

34.02

35.13

36.17

14.52

0.40

14.99

15.90

16.94

17.99

19.02

20.01

20.96

21.86

22.73

23.55

24.34

25.09

-65.020 

0.500

-60.101 

0.520

44.055

0.381

-64.777

-64.560

-64.373

-64.225

-64.138

-64.143

-64.310

-64.681

-64.825

-64.602

-64.383

-64.162

-58.458

-56.901

-55.386

-53.906

-52.439

-50.971

-49. 500

-47.997

-46.482

-44.971

-43.472

-41.982

31.940

24.871

20.174

16.830

14.326

12.377

10.818

9.536

8.466

7.560

6.786

6.117

1600 

1650

1650

1700 

1800

1900 

2000

18.134 

18.878

24.628

25.006 

26.636

28.266 

29.896

37.15 

37.62

41.11

41.60 

42.53

43.41 

44.25

25.82 

26.18

26.18

26.89 

27.73

28.53 

29.30

-63.947 

-63.825

-58.075

-58.686 

-58.491

-61.988 

-61.858

-40.512 

-39. 764

.__r39.764__.

-39.686 

-38.566

-37.289 

-35.991

5.534 

5.267

5.267

5.102 

4.683

4.289 

3.933

MELTING POINT

HEAT OF FUSION

H -H

298 0

1650 OEG K

5.750 KCAL

KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

OEG K

KCAL

0.28681 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 OEG K.

REFERENCES 148 148 148 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 111

HEMATITE GRAM FORMULA WEIGHT 159.692

:============================

Fe 2 03 : a crystals 298.15° to 950°K. 0 crystals 950° to 1050°K. 

7 crystals 1050° to melting point 1895°K.

TEMPi 

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY 

400 2.750 

500 5.770 

600 9.010 

700 12.460 

800 16.130 

900 20.030 

950 22.060

950 

1000

1050 

1100 

1200 

1300 

1400 

1500

1600 

1700 

1800

22.220 

24.020

25.820 

27.500 

30.870 

34.250 

37.650 

41.070

44.540 

48.100 

51.880

S -(G -H )/ 

T T 298 

(CAL/DEG-GFW)

20.89 

0.05 

28.80 

35.53 

41.43 

46.74 

51.64 

56.23 

58.43

58.60 

60.44

62.20 

63.76 

66.69 

69.40 

71.92 

74.28

76.52 

78.68 

80.84

20.89 

0.05 

21.92 

23.99 

26.41 

28.94 

31.48 

33.97 

35.21

35.21 

36.42

37.61 

38.76 

40.96 

43.05 

45.03 

46.90

48.68 

50.38 

52.02

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-197.300 

0.300 

-196.906 

-196.332 

-195.685 

-194.982 

-194.249 

-193.530 

-193.176

-193.016 

-193.100

-193.870 

-193.639

-193.881 

-193.426 

-193.002 

-192.589

-192.174

-192.277 

-191.811

-177.728 

0.310 

-171.096 

-164.701 

-158.433 

-152.286 

-146.241 

-140.269 

-137.300

-137.300 

-134.383

-131.430 

-128.480

-122.562

-116.660 

-110.778 

-104.910

-99.083

-93.262 

-87.435

LOG K

130.278 

0.227 

93.482 

71.991 

57.709 

47.546 

39.951 

34.062 

31.586

31.586 

29.369

27.356 

25.527

22.322 

19.612 

17.293 

15.285

13.534

11.990 

10.616

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1895 DEC K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

3.7189 KCAL MOLAR VOLUME 0.72357 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184* GAMMA-DELTA 1665,

M. P. DELTA 1809 DEG K.

REFERENCES 74 51

148

26

148

COMPILED 

4-15-67
112 THERMODYNAMIC PROPERTIES OF MINERALS 

MAGNETITE GRAM FORMULA WEIGHT 231.539

Fe 3O : a crystals 298.15° to 900°K. 0 crystals 900° to melting 

point 1870°K.

TCMD I tnr *

OEG K

298.

H _t-J "F1

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

3.990

8.320

13.060

18.340

24.260

30.550

30.550

35.350

40.150

44.950

49.750

54.550

59.350

64.150

68.950

73.750

S

T

(G -H )/T 

T 298

(CAL/DEG-GFW)

36.03

0.10

47.51

57.15

65.78

73.91

81.80

89.21

89.21

94.27

98.84

103.02

106.86

110.42

113.73

116.83

119.74

122.48

36.03

0.10

37.53

40.51

44.01

47.71

51.47

55.27

55.27

58.92

62.34

65.56

68.59

71.46

74.16

76.74

79.18

81.51

FORMATION

ENTHALPY

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFM)

-2C7.400

0.500

-266.763

-265.920

-264.880

-263.526

-261.812

-260.090

-260.090

-260.424

-261.442

-261.848

-261.222

-260.670

-260.162

-259.726

-260.200

-260.148

-243.094

0.510

-234.881

-226.991

-219.298

-211.818

-204.543

-197.473

-197.473

-190.506

-183.445

-176.370

-169.294

-162.258

-155.228

-148.257

-141.271

-134.249

178.192

0.374

128.332

99.217

79.879

66.132

55.878

47.953

47.953

41.635

36.447

32.121

28.461

25.330

22.617

20.251

18.162

16.300

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1870 DEC K BOILING POINT DEG K

33.COO KCAL HEAT OF VAPOR. KCAL

5.8730 KCAL MOLAR VOLUME 1.0641 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. I033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 DEG K.

REFERENCES 74 52 70

148

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES

WATER GRAM FORMULA WEIGHT 18.015

HO: Liquid 298.15° to 373.15°K. Ideal gas 373.15° to 2000°K.

T C UD 1 h~r 

DEG K

298.15

H un 

T 298

(KCAL)

0.000

UNCERTAINTY

373*15

373.15

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.352

11.069

12.173

13.028

13.909

14.819

15.759

16.728

17.729

18.759

19.817

20.903

22.014

23.149

24.306

25.483

26.679

27.892

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/OEG-GFW)

16.71

0.03

20.76

46.80

49.33

50.89

52.25

53.46

54.57

55.59

56.54

57.44

58.29

59.09

59.86

60.59

61.29

61.96

62.61

63.23

16.71

O.C3

17.14

17.14

24.98

29.18

32.38

34.94

37.06

38.86

40.42

41.81

43.05

44.16

45.18

46.12

46.99

47.80

48.57

49.28

FREE ENERGY LOG K

(KCAL/GFW)

-68.315

0.010

-67.747

-58.030

-58.275

-58.498

-58.708

-58.903

-59.082

-59.244

-59.389

-59.517

-59.631

-59.731

-59.822

-59.903

-59.974

-60.039

-60.096

-60.148

-56.688

0.020

-53.820

-53.820

-52.359

-51.156

-49.916

-48.644

-47.353

-46.040

-44. 709

-43.373

-42.028

-40.663

-39.302

-37.929

-36.549

-35.166

-33.788

-32.399

41.554

0.015

31.522

31.522

22.886

18.633

15.585

13.289

11.499

10.062

8.883

7.899

7.065

6.348

5.726

5.181

4.699

4.270

3.887

3.540

MELTING POINT 

HEAT OF FUSION

H -H 

?98 0

273.15 DEG K 

1.436 KCAL 

KCAL

BOILING POINT 373.15 DEG K 

HEAT OF VAPOR. 9.717 KCAL 

MOLAR VOLUME 0.43186 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 74 158 158 COMPILED 

5-11-67
114 THERMODYNAMIC PROPERTIES OF MINERALS

STEAM

trr = = t = = ____ __ _ 

H_0: Ideal gas

T C M D

1 t n r .

DEG K

298.15

H UIrt

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.825

1.654

2.509

3.390

4.300

5.240

6.209

7.210

8.240

9.298

10.384

11.495

12.630

13.787

14.964

16.160

17.373

tes=======

298.15°

GRAM FORMULA WEIGHT 

to 2000°K.

18.015

FORMATION FROM THE ELEMENTS 

S (G H )/T .-

T T 298 ENTHALPY

(CAL/DEG-GFK)

45.10

0.01

47.48

49.33

50.89

52.25

53.46

54.57

55.59

56.54

57.44

58.29

59.09

59.86

60.59

61.29

61.96

62.61

63.23

45.10

O.C1

45.42

46. C2

46.71

47.40

48. C9

48.75

49.38

49.99

50.57

51.13

51.67

52.19

52.70

53.18

53.65

54.10

54.55

FREE ENERGY LOG K

(KCAL/GFW)

-57.796

0.010

-58.040

-58.275

-58.498

-58.708

-58.903

-59.082

-59.244

-59.389

-59.517

-59.631

-59.731

-59.822

-59.903

-59.974

-60.039

-60.096

-60.148

-54.635

0.020

-53.517

-52.360

-51.155

-49.914

-48.646

-47.351

-46.040

-44.712

-43.372

-42.022

-40.663

-39.298

-37.927

-36.551

-35.171

-33.788

-32.403

40.048

0.015

29.240

22.886

18.633

15.584

13.289

11.498

10.062

8.883

7.899

7.065

6.348

5.726

5.181

4.699

4.270

3.887

3.541

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

2.3670 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 158 COMPILED 

2-12-67
HAFNIA

PROPERTIES AT HIGH TEMPERATURES 115

GRAM FORMULA WEIGHT 210.489

===*Z==fc=3=== ^== ====== ====== ===3= ===== 33========= ==e= =============

Hf02 : Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

OEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFK)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400 

500 

600 

700 

ROO 

900 

1000

1100

1200

1300

1400

1500

1600 

1700 

1800 

1900 

20CO

1.540

3.170

4.900

6.710

8.570

10.450

12.230

14.280

16.230

18.200

20.200

22.220

24.260

26.320

28.400

30.500

32.620

14.18

0.10

18.61

22.24

25.40

28.19

30.67

32.88

34.88

36.72

38.42

40.00

41.48

42.87

44.19

45.44

46.63

47.76

48.85

14.18

0.10

14.76

15.90

17.23

18.60

19.96

21.27

22.65

23.74 

24.89 

?6.00 

27.05 

28.06

29.03

29.96

30.85

31.71

32.54

 266.050 

0.300

 265.870

 265.613

 265.299

 264.946

 264.582

 264.231

 264.012

 263.553

 263.221

 262.897

 262.567

 262.243

 261.923

 261.607

 261.295

 260.988

 260.684

 252.566 

0.310

 247.985

 243.536

 239.157

 234.826

 230.548

 226.312

 222.238

 217.955

 213.828

 209.731

 205.647

 201.586

 197.565

 193.558

 189.552

 185.575

 181.620

185.135

0.227

135.492

106.449

87.113

73.316

62.983

54.956

48.570

43.303

38.943

35.259

32.103

29.371

26.986

24.883

23.015

21.346

19.846

MELTING POINT 

HFAT OF FUSION

H -H 

298 0

3173 OEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.49768 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

HAFNIUM.... ALPHA-BETA 2013 OEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
116 THERMODYNAMIC PROPERTIES OF MINERALS 

MCNTROYDITE GRAM FORMULA WEIGHT 216.589

HgO: Crystals 298-. 15° to 1000°K.

TPMD U U I C~r * n n 

T 298

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400 1.126

500 2.323

600 3.587

700 4.905

800 6.263

900 7.652

1000 9.063

S

T

(G -H )/T 

T 298

(CAL/OEG-GFW)

16.80

0.08

20. C4

22.71

25.01

27.04

28.86

30.49

31.98

16.80

O.C8

17.23

18. C6

19.03

20.04

21.03

21.99

22.91

FORMATION

ENTHALPY

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-21.711

0.090

-21.620

-21.440

-21.203

-34.949

-34.487

-34.001

-33.500

-13.998

0. 100

-11.375

-8.832

-6.333

-2.305

2.327

6.901

11.418

10.261

0.073

6.215

3.860

2.307

0.720

-0.636

-1.676

-2.496

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEC K

KCAL HEAT OF VAPOR. KCAL

2.1780 KCAL MOLAR VOLUME 0.46176 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MERCURY.... B. P. 629.73 OEG K.

REFERENCES 74 78 22 COMPILED 

4-10-67
PROPERTIES AT HIGH TEMPERATURES 117

POTASSIUM OXIDE

fc = = = J» = = se=== = = ==,= == = ==== = :!== = =

GRAM FORMULA WEIGHT 94.203

3= = = = 3 = = ================== = = = = == =

K 0: Crystals 298.15° to 2000°K. K 2 0 decomposes above 1154°K and 

tabulated data are a metastable extrapolation.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2. 148

4.367

6.657

9.033

11.504

14.071

16.735

19.496

22.354

25.309

28.360

31.508

34.754

38.097

41.358

45.076

48.712

S -(G -H )/ 

T T 298 

(CAL/DEG-GFW)

22.50

1.50

28.68

33.63

37.81

41.47

44.76

47.79

50.59

53.22

55.71

58.07

60.33

62.51

64.60

66.63

68.59

70.51

72.37

22.50

1.50

23.31

24.90

26.71

28.56

30.38

32.15

33.86

35.50

37. C8

38.61

40.08

41.50

42.88

44.22

45.62

46.78

48.02

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-86.800

0.500

-87.668

-87.300

-86.840

-86.285

-85.637

-84.901

-84.092

-121.025

-119.585

-118.052

-116.427

-114.709

-112.895

-110.989

-109.169

-106.898

-104.712

-76.974

0.680

-73.441

-69.926

-66.491

-63.141

-59. 880

-56.703

-53.614

-48.560

-42.033

-35.634

-29.352

-23. 193

-17.150

-11.226

-5.593

0.283

5.869

LOG K

56.423

0.498

40.126

30.565

24.219

19.714

16.358

13.769

11.717

9.648

7.655

5.991

4.582

3.379

2.343

1.443

0.679

-0.033

-0.641

MELTING POINT 

HF.AT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.96511 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

POTASSIUM.. M. P. 336.4, B. P. 1043.7 DEG K.

REFERENCES 148 148 148 COMPILED 

2-12-67
118 THERMODYNAMIC PROPERTIES OF MINERALS

LITHIUM OXIDE

Li 2 0: Crystals

T 298

OEG K (KCAL)

298*15 0.000

UNCERTAINTY

400

500

600

700

800

 900

1000

1100

1200

1.445

3.045

4.765

6.580

8.470

10.430

12.460

14.540

16.660

298.15° to 1200°K,

GRAM FORMULA WEIGHT

FORMATION

S

I f* LJ \ t T _ ___ _ _ _

T T 298 ENTHALPY

(CAL/DEG-GFW)

8.98

0.02

13.13

16.70

19.83

22.62

25.15

27.46

29.59

31.58

33.42

8.98

0.02

9.52

10.61

11.89

13.22

14.56

15.87

17.13

18.36

19.54

29.877

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-H3.100

0.500

-143.281

-144.882

-144.966

-144.940

-144.833

-144.662

-144,425

-144.141

-143.821

-134.329

0.510

-131.300

-128.143

-124.783

-121.417

-118.069

-114.735

-111.413

-108.134

-104.871

98.466

0.374

71.739

56.011

45.452

37.908

32.255

27.861

24.349

21.484

19.100

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1700 OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

2.7250 KCAL MOLAR VOLUME 0.35277 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LITHIUM.... M. P. 453.69, B. P. 1597 DEG K.

REFERENCES 148 148 148 COMPILED 

4-10-67
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1 1 86Z Ad1VHlN3 901

S 9)- H- i/( . 

NOIlVWbDd HObd 3H1 S1N3W313 

930 >t (1VDX) 

1 86Z 

*dW3i H HoST'862

WV«9 VinWbOd 1H9I3M * 

IV HDIH 61T
THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 58.327

120 

BRUCITE

Mg(OH) 2 : Crystals 298.15° to 600°K. At approximately 540°K the 

partial pressure of I^O in equilibrium with brucite 

reaches one atmosphere. 

___ _ ,-_.. _____ -.________. _ « __ __ __.._____..__. _______ _. .____.

FORMATION FROM THE ELEMENTS 

TEMP. H -H S -(G -H J/T 

T 298 T T 298 ENTHALPY FREE ENERGY LOG K 

DEC K (KCAL) (CAL/DEG-GFW) (KCAL/GFWI

298.15 0.000 

UNCERTAINTY

400

500

600

1.890

3.890

6.080

15.09 

O.C3

20.53

24.99

28.98

15.C9 

O.C3

15.80

17.21

18.85

-221.200 

0.780

-221.362

-221.431

-221.362

-199.458 

0.790

-192.002

-184.656

-177.303

146.206

0.579

104.905

80.713

64.582

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

2.7250 KCAL MOLAR VOLUME 0.58867 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MAGNESIUM.. M. P. 922 t B. P. 1363 DEG K.

REFERENCES 74 78 150

63

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 121

.MANGANOSITE GRAM FORMULA WEIGHT 70.937

MnO: Crystals 298.15° to melting point 2054°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

DEC K (KCAL)

5 -<G -H )/T 

T T 298 

(CAL/OEG-GFW)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.130

2.280

3.470

4.680

5.900

7.150

8.430

9.750

11.100

12.470

13.840

15.210

16.590

17.950

19.350

20.740

22.130

14.27

0.10

17.53

20.09

22.26

24.13

25.76

27.23

28.58

29.83

31.01

32.10

33.12

34.07

34.96

35.79

36.58

37.33

38.05

14.27

0.10

14.70

15.53

16.48

17.44

18.38

19.29

20.15

20.97

21.76

22.51

23.23

23.93

24.59

25.23

25.83

26.41

26.98

 92.050 

0.110

-86.720 

0. 120

63.567

0.088

-91.972

-91.882

-91.875

-91.759

-91.758

-9^.770

-92.318

-92.323

-92.302

192.280

=93.473

-97.131

-97.312

-97.457

-97.614

-97.774

-84.911

-83.154

-81.486

-79.695

-77.977

-76.249

-74.526

-72.730

-70.965

____ l69 1 175_

-65.552

-63.392

-61.282

-59.138

-57.011

-54.873

46.393

36.346

29.681

24.882

21.302

18.516

16.288

14.450

12.925

__ 11.629

9.551

8.659

7.878

7.180

6.558

5.996

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2054 OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.31599 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 OEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
122 THERMODYNAMIC PROPERTIES OF MINERALS

PYROLUSITE GRAM FORMULA WEIGHT 86.937

MnO 2 : Crystals 298.15° to 900°K.

TEMP. H -H

T 298 

OEG K (KCAU

5 -(G -H >/T 

T T 2<38 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1.445

3.020

4.685

6.415

8.185

9.990

12.68

0.10

16.84

20.35

23.38

26.04

28.41

30.56

12.68

0.10

13.23

14.31

15.57

16.88

18.18

19.46

 124.450 

0.200

 124.419

 124.270

 124.165

 123.918

 123.766

 123.630

-111.342 

0.210

-106.866

-102.493

-98.221

-93.840

-89.564

-85.315

81.615

0.154

58.389

44.800

35.777

29.298

24.468

20.717

MELTING POINT 

H6AT OF FUSION

H -H 

298 0

OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.39699 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 DEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
BIXBYITE

Mn 2 O3 : Crystals 298.15°

T C U D LJ _ LJ I tnr n ""n

T 298

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

2.550

5.220

8.040

10.990

14.040

17.190

20.420

23.740

27.150

30.650

GRAM FORMULA WEIGHT 

to 1300°K.

157.874

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/DEG-GFW)

26.40

0.50

33.73

39.68

44.82

49.37

53.44

57.15

60.55

63.71

66.68

69.48

26.40

0.50

27.35

29.24

31.42

33.67

35.89

38.05

40.13

42.13

44. C5

45.90

FREE ENERGY LOG K

(KCAL/GFW)

-228.700

0.500

-228.616

-228.432

-228.355

-227.982

-227.769

-227.550

-228.390

-228.139

-227.811

-227.436

-210.097

0.530

-203.746

-197.547

-191.530

-185.280

-179.201

-173.138

-167.104

-160.968

-154.897

-148.825

154.005

0.388

111.321

86.347

69.765

57.847

48.955

42.043

36.521

31.981

28.211

25.020

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.74976 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 DEG K.

REFERENCES 74 78 118

22

COMPILED 

6-13-66
124 THERMODYNAMIC PROPERTIES OF MINERALS

HAUSMANNITE GRAM FORMULA WEIGHT 228.812

Mn 3 04 : Tetragonal crystals 298.15° to 1445°K. Cubic crystals 

1445° to 1800°K.

TCMD 1 t r! K 

OEG K

298.15

H

 U

H

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

60X)

700

800

900

1000

1100

1200

1300

1400

1445

1445

1500

1600

1700

1800

3.730

7.590

11.590

15.740

19.980

24.250

28.570

33.020

37.650

42.510

47.620

49.960

54.930

57.690

62.710

67.730

72.750

FORMATION FROM THE ELEMENTS

T T 2S8 ENTHALPY

(CAL/DEG-GFVi)

36.80

1.00

47.55

56.16

63.45

69.84

75.50

80. 53

85.08

89.32

93.35

97.23

101.02

102.67

106.11

107.98

111.22

114.26

117.14

36.80

1.00

38.22

40.98

44.13

47.35

50.52

53.59

56.51

59.30

61.97

64.53

67.01

68.10

68.10

69.52

72.03

74.42

76.72

FREE ENERGY LOG K

(KCAL/GFH)

-331.400

0.400

-331.188

-330.875

-330.800

-330.321

-330.137

-330.060

-331.639

-331.582

-331.363

-330.977

-332.110

-332.240

-327.270

-328.462

-338.996

-339.040

-339.098

-306. 313

0.500

-297.774

-289.456

-281.408

-272.992

-264.828

-256.661

-248.511

-240. 176

-231.905

-223.605

-215.330

-211.560

-211.560

-207. 118

-198.151

-189.324

-180.529

224.533

0.367

162.695

126.521

102.503

85.232

72.347

62.326

54.312

47.719

42.235

37.591

33.614

31.997

31.997

30.177

27.066

24.339

21.919

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.1221 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, EETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 OEG K.

REFERENCES 74 118 22 COMPILED 

6-13-66
MOLYBDITE

Mo0 3 : Crystals 298.15° 

1400°K.

T C M O 14 _LJ I t " r n M

T 298

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

aoo

900

1000

1074

1074

1100

1200

1300

1400

1.920

3.970

6.130

8.380

10.720

13.150

15.670

17.590

29.280

30.070

33.090

36.110

39.130

GRAM FORMULA WE IGHT 143.938

to melting point 1074°K. Liquid 1074° to

FORMATION

S

IP U 1 /T ___ ___M______

T T 298 ENTHALPY

(CAL/OEG-GFW)

IB. 58

0.10

24.11

28.68

32.61

36.08

39.20

42.06

44.72

46.57

57.45

58.18

60.81

63.23

65.47

18.58

0.10

19.31

20.74

22.39

24.11

25.80

27.45

29. C5

30.19'

30.19

30.84

33.23

35.45

37.52

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAK/GFW)

-178.160

0.100

-177.924

-177.577

-177.173

-176.724

-176.223

-175.666

-175.052

-174.554

-162.864

-162.591

-161.543

-160.524

-159.535

-159.745

0. 110

-153.490

-147.417

-141.422

-135.499

-129.639

-123.855

-118.127

-113.938

-113.938

-112.756

-108.273

-103.883

-99. 559

117.096

0.081

83.863

64.436

51.513

42.304

35.416

30.076

25.816

23.185

23.185

22.402

19.719

17.464

15.542

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1074 DEG K 

11.690 KCAL 

KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.73040 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MOLYBDENUM. M. P. 2890 DEG K.

REFERENCES 74 78 103 COMPILED 

12-10-66
126 THERMODYNAMIC PROPERTIES OF MINERALS

NITROGEN DIOXIDE (IDEAL GAS) GRAM FORMULA WEIGHT 46.005

N02 : Ideal gas 298.15° to 2000°K.

TEMP. 

DEC K

298.15

H -H 

T 298 

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.944

1.948

3.021

4.151

5.327

6.539

7.780

9.043

10.324

11.620

12.929

14.247

15.573

16.907

18.247

19.591

20.940

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

57.35

0.02

60. 07

62.30

64.26

66. CO

67.57

69.00

70.30

71.51

72162

73.66

74.63

75.54

76.39

77.20

77.97

78.70

79.39

57.35

O.C2

57.71

58.41

59.22

60.07

60.91

61.73

62.52

63.29

64.02

64.72

65.39

66. C4

66.66

67.26

67.83

68.28

68.92

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

7.930

0.100

7.795

7.716

7.678

7.666

7.673

7.691

7.718

7.748

7.781

7.814

7.849

7.881

7.912

7.943

7.969

7.992

8.012

12.262

0. 110

13.765

15.267

16.782

18.300

19.819

21.336

22.852

24.363

25.872

27.378

28.881

30.383

31.882

33.379

34.876

36.370

37.862

LOG K

-8.989

0.081

-7.521

-6.673

-6.113

-5.714

-5.414

-5.181

-4.994

-4.840

-4.712

-4.603

-4.509

-4.427

-4.355

-4.291

-4.235

-4.184

-4.137

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

261.90 DEG K

3.502 KCAL 

2.4370 KCAL

BOILING POINT 294.25 DEG K

HEAT OF VAPOR. 9.110 KCAL

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158 158 COMPILED 

2-12-67
SODIUM OXIDE

127

GRAM FORMULA HEIGHT 61.979

1=3333===================3=3=

Na 20: Crystals 298.15° to melting point 1190°K.

TEMP. H -H 

T 298 

OEG K (KCAU

298.15 0.000 

UNCERTAINTY

400 1.789 

500 3.683 

600 5.676 

700 7.768 

800 9.959 

900 12.247 

1000 14.636 

1100 17.122

S -tG -H I/T 

T T 298 

JCAL/OEG-GFWJ

17.99 

0.20

23.26 

27.48 

31.11 

34.33 

37.26 

39.95 

42.47 

44.84

17.99 

0.20

18.79 

20.11 

21.65 

23.23 

24.81 

26.34 

27.83 

29.27

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFM)

-99,400 -90.161 

1.500 1.510

-100.685 -86.950 

-100.638 -83.517 

-100.465 -80.106 

-100.174 -76.735 

-99.772 -73.416 

-99.271 -70.147 

-98.675 -66.945 

-98.001 -63.809

LOG K

66.090 

1.107

47.507 

36.505 

29.179 

23.958 

20.056 

17.034 

14.631 

12.678

MELTING POINT 1193 DEG K BOILING POINT 

HEAT OF FUSION KCAL HEAT OF VAPOR,

H -H KCAL MOLAR VOLUME 

298 0

TRANSITIONS IN REFERENCE STATE ELEMENTS

SODIUM:..... M. P. 370.98, B. P. 1176.9 DEG K.

DEG K

KCAL

CAL/BAR

REFERENCES 148 50 22 COMPILED 

6-13-66
8UNSENITE

NiO: Crystals

TEMP.

OEG K

298*15

H -H

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.165

2.535

3.940

5.220

6.500

7.780

9.070

10.370

11.700

13.060

14.450

15.860

17.300

18.770

20.260

21.770

23.300

298.15° to melting

S -(G -H I/I

T T 298

(CAL/DEG-GFW)

9.08

0.04

12.43

15.47

18.05

20.02

21.73

23.24

24.60

25.84

26.99

28.08

29.11

30.08

31.01

31.90

32.76

33.57

34.36

9.08

0.04

9.52

10.40

11.48

12.56

13.60

14.60

15.53

16.41

17.24

18.03

18.79

19.51

20.20

20.86

21.50

22.11

22.71

GRAM FORMULA WEIGHT

point 2257°K.

74.709

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K

(KCAL/GFW)

-57.300

0.100

-57.163

-56.865

r 56.. 620 .

-56.519

-56.378

-56.259

-56.158

-56.077

-55.993

-55.905

-55.806

-55.697

-55.560

-55.396

-59.513

-59.480

-59.430

-50.574

0.110

-48.294

-46. 102

-43. 987

-41.879

-39.797

-37.732

-35.677

-33.635

-31.584

-29.563

-27.536

-25.511

-23.501

-2j[. 508

-19.340

-17.110

-14.889

37.072

0.081

26.387

20.151

16.022

13.075

10.872

9.162

7.797

6.683

5.752

4.970

4.298

3.717

3.210

-.2.765

2.348

1.968

1.627

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2257 DEC K BOILING POINT DEC K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.26219 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

NICKELI.... CURIE P. 631, M. P. 1726 OEG K.

REFERENCES 74 78 18 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 129

PHOSPHORUS PENTOXIDE (DIMERIC)

t===4===fc==3==33c======s^=^=s===a=:

(P 2 0 5 )2:Crystals 298.15° to 1000°K.

GRAM FORMULA WEIGHT 283.889

1=333=========33=======33=H=33

400

500

600

700

800

900

1000

5.991

13.131

21.431

30.845

41.334

52.856

FORMATION FROM THE ELEMENTS

itnK. H -M 

T 298 

DEC K (KCAL)

298.15 0.000 

UNCERTAINTY

i -Il» -H I/I 

T T 298 ENTHALPY FREE ENERGY LOG K 

(CAL/DEG-GFM) (KCAL/GFM)

54. 

0.

70 

10

54.

0.

70 

10

-713. 

0.

200 

400

-649. 

0.

968 

410

476. 

0.

438 

301

71.89

87.77

102.87

117.36

131.35

144.91

65.372 158.09

56.91

61.51

67.16

73.30

79.69

86.19

92.72

-712.997

 711.796

-709.675

 706.683

 778.808

 772.183

 628.369

 607.331

 586.625

 566.341 

: 5677796"

 541.030

 514.955

343.324

265.463

213.677

.176.819

155.113

131.380

112.543

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

842 DEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

8.258 KCAL MOLAR VOLUME 2.8393 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

PHOSPHORUS. SUBLIMES 704 OEG K.

REFERENCES 148 158 158 COMPILED 

2-12-67
130 THERMODYNAMIC PROPERTIES OF MINERALS 

LITHARGE (RED) GRAM FORMULA WEIGHT 223.189

PbO: Tetragonal crystals 298.15° to 900°K. Massicot (orthorhombic)

is the stable phase above 762°K. See table for lead

monoxide (reference state).

H -H

T 298 

DEG K (KCAL)

i -<G -H )/T 

T T 298 

(CAL/DEG-GFK)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1.220

2.460

3.740

5.060

6.420

7.820

15.60

0.20

19.12

21.88

24.22

26.25

28.06

29.71

15.60

0.20

16.07

16.96

17.99

19.02

20.03

21.02

 52.410 

0.160

 52.207

 51.997

 51.788

-52.493

-52.212

-45.121 

0. 180

-42.662

-40.299

-37.985

-33.056

-30.643

33.074

0.132

23.310

17.615

13.836

9.030

7.441

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.57146 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 600.6, B. P. 2023 DEG K.

REFERENCES 74 78

159

22

148

COMPILED 

5-18-67
PROPERTIES AT HIGH TEMPERATURES 131

MASSICOT (YELLOW) GRAM FORMULA WEIGHT 223.189

PbO: Orthorhombic crystals 298.15° to 2000°K. See table for lead 

monoxide (reference state).

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.152

2.339

3.568

4.832

6.128

7.453

8.809

10.194

11.607

13.049

14.518

16.015

17.540

19.092

20.672

22.279

23.914

S -(G -H )/T 

T T 298 

(CAL/DEG-GFh)

16.10

0.20

19.42

22.07

24.30

26.25

27.98

29.54

30.97

32.29

33.52

34.67

35.76

36.80

37.78

38.72

39.62

40.49

41.33

16.10

0.20

16.54

17.39

18.36

19.35

20.32

21.26

22.16

23.02

23.85

24.64

25.39

26.12

26.82

27.49

28.14

28.77

29.37

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-52.180

0.170

-52.045

-51.888

-51.730

-55.728

-52.555

-52.349

-52.112

-51.846

-51.547

-51.220

-50.867

-50.490

-50.087

-49.660

-49.209

-48.733

-48.232

-45.040

0. 190

-42.620

-40.283

-37.978

-3?. ?o?

-33.056

-30.629

-28.233

-25.865

-23.504

-21.192

-18.892

-16.624

-14.396

-12.153

-9.961

-7.793

-5.655

LOG K

33.015

0.139

23.286

17.608

13.833

II. 086

9.031

7.438

6.170

5.139

4.281

3.563

2.949

2.422

1.966

1.562

1.209

0.896

0.618

117C DEC K BOILING POINT 1789 DEG K

6.100 KCAL HEAT OF VAPOR. 49.530 KCAL

H -H KCAL MCLAR VOLUME 0.55330 CAL/BAR'

298 0

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 6C0.6, B. P. 2023 CEG K.

REFERENCES 148 78

159

22

148

COMPILED 

5-18-67
132 THERMODYNAMIC PROPERTIES OF MINERALS

LEAD MONOXIDE (REFERENCE STATE) GRAM FORMULA WEIGHT 223.189

PbO: Litharge (red) 298.15° to 762°K. Massicot (yellow) 762° to 

1170 8 K. Liquid 1170° to 1789°K. Ideal gas 1789° to 2000°K.

TCM D 1 Crt r 

DEG K

298.15

H _u n 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

762

762

800

900

1000

1100

1170

1170

1200

1300

1400

1500

1600

1700

1789

1789

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

1.220

2.460

3.740

5.060

5.898

5.978

6.474

7.799

9.155

10.540

11.180

17.280

18.092

19.645

21.119

22.752

24.306

25.859

27.242

76.772

76.871

77.774

78.678

POINT 

FUSION

S

T

If* U 1 / T I (j n 1 /T 

T 298

(CAL/DEG-GFW)

15.60

0.20

19.12

21.88

24.22

26.25

27.40

27.50

28.04

29.60

31.03

32.35

33.16

38.37

38.82

40.07

41.22

42.29

43.29

44.23

45.03

72.71

72.77

73.26

73.72

1170 

6.100

15.60

0.20

16.07

16.96

17.99

19.02

19.66

19.66

19.95

20.93

21.87

22.77

23.60

23.60

23.75

24.95

26.13

27.12

28.10

29.02

29.80

29.80

30.06

32.32

34.38

DEC K 

KCAL

KCAL

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K

(KCAL/GFW)

-52.410

0.160

-52.207

-51.997

-51.788 -52:730 ~

-52.597

-52.517

-52.439

-52.233

-51.996

-51.730

-51.523

-45.423

-45.292

-44.854

-44.496

-43.983

-43.551

-43.123

-42.745

6.785

6.760

6.531

6.301

BOILING POINT 

HEAT OF VAPOR

MOLAR VOLUME

-45.121

0.180

-42.662

-40.299

-37.985

-35.507

-33.906

-33.906

-32.986

-30.565

-28.174

-25.811

-24. 144

-24.144

-23.611

-21.835

-20.155

-18.356

-16.680

-14.988

-13.527

-13.527

-13.651

-14.778

-15.897

1789 

. 49.530

0.57146

33.074

0.132

23.310

17.615

13.836

11.086

9.724

9.724

9.011

7.422

6.157

5.128

4.510

4.510

4.300

3.671

3.146

2.674

2.278

1.927

1.652

1.652

1.657

1.700

1.737

OEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 600.6, B. P. 2023 DEG K.

REFERENCES 74 78

159

22

148

COMPILED 

5-17-67
MINIUM

fcssaftss

Pb 3 0 4 :

TCMD 1 C rlr 

OEG K

298.15

GRAM FORMULA WEIGHT

Crystals

H H 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1ROO

1900

2000

3.618

7.249

10.958

14.745

18.610

22.553

26.574

30.673

34.850

39.105

43.438

47.849

52.339

56.905

61.550

66.273

71.074

298.15

S 

T

0 to 2000°K.

(G -H )/T 

T 298

(CAL/DEG-GFK)

50.50

1.50

60.93

69.03

75.79

81.63

86.79

91.43

95.67

99.57

103.21

106.61

109.82

112.87

115.76

118.53

121.19

123.74

126.20

50.50

1.50

51.89

54.53

57.53

60.56

63.53

66.37

69.09

71.69

74.17

76.53

78.80

80.97

83.05

85.06

86.99

68.86

90.67

FORMATION

ENTHALPY

685.568

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFWI

-171.700

2.000

-171.495

-171.321

-171.201

-174.389

-174.492

-174.313

-174.064

-173.740

-173.329

-172.849

-172.296

-171.679

-170.995

-170.245

-169.430

-168.549

-167.600

-143.632

2.060

-134.075

-124.744

-115.445 "-163:334--"

-95.726

-85.886

-76.084

-66.323

-56.540

-46. 866

-37.182

-27.561

-18.029

-8.414

1.077

10.528

19.922

105.284

1.510

73.255

54.525

42.051

52.9*3

26.151

20.856

16.628

13.177

10.297

7.879

5.804

4.016

2.463

1.082

-0.131

-1.211

-2.177

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.8358 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 600.6, B. P. 2023 OEG K.

REFERENCES 148 78

159

159 COMPILED 

4-15-67
134 THERMODYNAMIC PROPERTIES OF MINERALS

SULFUR DIOXIDE GRAM FORMULA WEIGHT 64.063

S02 : Ideal gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.015

2.090

3.240

4.440

5.675

6.940

8.230

9.545

10.875

12.215

13.565

14.925

16.290

17.660

19.035

20.415

21.800

S -(G -H )/T 

T T 298 

(CAL/DEG-GFV.)

59.30

0.10

62.22

64.62

66.71

68.56

70.21

71.70

73. C6

74.31

75.47

76.54

77.54

78.54

79.36

80.19

80.98

81.72

82.43

59.20

0.10

59.68

60.44

61.31

62.22

63.12

63.99

64.83

65.63

66.41

67.14

67.85

68.59

69.18

69.80

70.40

70.98

71.53

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-70.944

0.050

-71.762

-72.357

-72.818

-73.196

-86.584

-86.571

-86.549

-86.516

-86.478

-86.440

-86.401

-86.360

-86.320

-86.281

-86.245

-86.210

-86.176

-71.750

0.060

-71.959

-71.941

-71.809

-71.610 ""-72:579"

-70.865

-69.081

-67.334

-65.594

-63.851

-62.115

-60. 476

-58.653

-56.924

-55. 152

-53.471

-51.748

LOG K

52.594

0.044

39.316

31.445

26.156

22.358

T9783S

17.208

15.098

13.378

11.946

10.734

9.697

8.811

8.012

7.318

6.696

6.151

5.655

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

197.64 DEG K

1.769 KCAL 

2.5220 KCAL

BOILING POINT 263.08 DEG K 

HEAT OF VAPOR. 5.960 KCAL 

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 148 158

34

158 COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 135

SULFUR TRIOXIOE GRAM FORMULA WEIGHT 80.062

SO3 : Ideal gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000 

UNCERTAINTY

S -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

61.34 61.34 

0.20 0.20

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-94.580 -88.690 

0.170 0.190

65.012 

0.139

400 

500 

600 

700 

flCO 

900 

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.322

2.768

4.328

5.975

7.687

9.448

11.248

13.077

14.930

16.802

18.688

20.587

22.497

24.415

26.340

28.272

30.209

65.14

68.36

71.20

73.74

76.03

78.10

80.00

81.74

83.35

84.85

86.25

87.56

88.79

89.95

91.05

92.10

93.09

61.83

62.82

63.99

65.20

66.42

67.60

68.75

69.85

70.91

71.93

72.90

73.84

74.73

75.59

76.42

77.22

77.99

-95.453 

-96.042 

-96.471 

-96.791

110.101

109.999

1C9.880

109.753

109.616

109.474

109.331

109.187

109.040

108.894

1C8.753

108.613

108.477

-86.601 

-84.318 

-81.929 

-79.480

-78.211

-74.263

-70.260

-66.304

-62.356

-58.424

-54.507

-50. 597

-46.690

-42.793

-38.855

-35.043

-31.168

47.317 

36.855 

29.842 

__24.815

21.366

18.033

15.355

13.173

11.357

9.822

8.509

7.372

6.378

5.501

4.718

4.031

3.406

MELTING POINT 

HEAT OF FUSION

H -H 

?98 0

OEG K BOILING POINT DEC K

KCAL HEAT OF VAPOR. KCAL

2.7960 KCAL MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEC K.

REFERENCES 148 158 158 COMPILED 

5-06-67
136 THERMODYNAMIC PROPERTIES OF MINERALS 

SILICON MONOXIDE GRAM FORMULA WEIGHT 44.085

SiO: Ideal gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298*15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.742

1.501

2.288

3.096

3.922

4.761

5.610

6.468

7.332

8.201

9.076

9.953

10.834

11.718

12.604

13.493

14.383

S -1G -H )/T 

T T 298 

(CAL/DEG-GFH)

50.55

0.20

52.69

54.38

55.82

57.06

58.16

59.15

60.05

60.86

61.62

62.31

62.96

63.56

64.13

64.67

65.18

65.66

66.11

50.55

0.20

50.83

51.38

52.00

52.64

53.26

53.86

54.44

54.98

55.51

56.00

56.48

56.93

57.36

57.78

58.17

58.55

58.92

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-23.800

1. 000

-23.936

-24.088

-24.251

-24.423

-24.602

-24.790

-24.984

-25.185

-25.391

-25.602

-25.817

-26.040

-26.267

-38.570

-38.739

-38.907

-39.077

-30.226

I. 010

-32.403

-34.501

-36.570

-38.610

-40.624

-42.615

-44. 578

-46.528

-48.462

-50. 379

-52.271

-54.166

-56.039

-.57. 790

-58.912

-60.027

-61. 141

LOG K

22.156

0.740

17.704

15.081

13.320

12.055

11.098

10.348

9.743

9.244

8.826

8.469

8.160

7.892

7.655

7.429

7.153

6.905

6.681

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

2.0820 KCAL MOLAR VOLUME 584.727 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 OEG K.

REFERENCES 148 158 158 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 137

QUARTZ

*==**==

Si02 :

T C UD I cnr 

DEG K

298.15

a quartz

0 quartz

H

_ ijn 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

6CO

700

800

848

848

900

1000

1100

1140

1200

1300

1400

1500-

1600

1700

1800

1900

2000

MELTING 

HEAT OF 

H -H

298 0

1.200

2.560

4.040

5.630

7.320

8.170

8.460

9.300

10.920

12.570

13.247

14.250

15.940

17.640

19.360

21.100

22.860

24.630

26.420

28.220

POINT 

FUSION

298.15° to 848°K. |

is metastable above

S

T

(G -H )/T 

T 298

(CAL/DEG-GFW)

9.88

0.02

13.33

16.36

19.05

21.50

23.76

24.79

25.13

26.09

27.80

29.37

29.97

30.83

32.18

33.44

34.63

35.76

36.82

37.84

38.81

39.73

1.6257

9.68

0.02

10.33

11.24

12.32

13.46

14.61

15.16

15.16

15.76

16.88

17.94

18.35

18.95

19.92

20.84

21.72

22.57

23.37

24.16

24.90

25.62

DEG K 

KCAL 

KCAL

GRAM FORMULA WEIGHT

3 quartz 848° to 2000°K,

1140°K.

60.085

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY

(KCAL/GFW)

-217.650 -204.646

0.400 0.410

-217.690 -200.197

-217.607 -195.830

-217.454 -191.486

-217.233 -187.176

-216.947 -182.905

-216.787 -180.870

-216.497 -180.870

-216.401 -178.680

-216.238 -174.494

-216.066 -170.325

-215.997 -168.662

-215.880 -166.175

-215.699 -162.039

-215.521 -157.915

-215.336 -153.824

-215.143 -149.745

-227.011 -145.549

-226.740 -140.777

-226.455 -136.013

-226.165 -131.261

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME 0.54226

LOG K

150.009

0.301

109.382

85.597

69.749

58.439

49.967

46.615

46.615

43.389

38.136

33.840

32.334

30.264

27.241

24.652

22.412

20.454

18.712

17.093

15.645

14.343

DEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 178 180

49

COMPILED 

6-13-66
138 THERMODYNAMIC PROPERTIES OF MINERALS 

CRISTOBALITE GRAM FORMULA WEIGHT 60.085

SiO : a cristobalite 298.15° to 523°K. 0 cristobalite 523° to 

2

2000°K. Cristobalite melts at 1996°K.

*

DEG K

298.

H

IJn

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

523

523

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1743

1800

1900

1996

2000

1.210

2.560

2.910

3.110

4.310

5.850

7.460

9.090

10.730

12.390

14.080

15.790

17.510

19.240

20.990

22.750

23.513

24.530

26.320

28.050

28.120

S

T

f C _~U 4 / T

( li M 1 / T 

T 298

(CAL/DEG-GFH)

10.38

0.02

13.86

16.86

17.54

17.92

20.06

22.43

24.58

26.50

28.23

29.81

31.28

32.65

33.92

35.12

36.25

37.31

37.75

38.33

39.30

40.19

40.22

10.38

0.02

10.83

11.74

11.97

11.97

12.88

14.07

15.25

16.40

17.50

18.55

19.55

20.50

21.41

22.29

23.13

23.93

24.26

24.70

25.45

26.14

26.16

FORMATION

ENTHALPY

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFM)

-216.930

0.450

-216.960

-216.887

-216.870

-216.670

-216.464

-216.293

-216.087

-215.891

-215.708

-215.526

-215.330

-215.129

-214.931

-214.736

-214.533

-226.401

-226.280

-226.120

-225.835

-225.557

-225.545

-204.075

0.460

-199.679

-195.360

-194.367

-194.367

-191.102

-186.887

-182.701

-178.539

-174.394

-170.269

-166.165

-162.080

-157.997

-153.959

-149.919

-145.772

-143.735

-141.039

-136.324

-131.809

-131.621

149.591

0.337

109.099

85.392

81.223

81.223

69.609

58.348

49.911

43.355

38.114

33.829

30.263

27.248

24.664

22.432

20.478

18.740

18.022

17.124

15.681

14.432

14.383

MELTING POINT 1996 DEC K

HEAT OF FUSION 1.950 KCAL

H -H 1.6825 KCAL

298 0

BOILING POINT

HEAT OF VAPOR.

MCLAR VOLUME 0.61518

DEG K

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 69

178

36

95

COMPILED 

4-29-67
TRIDYMITE 

SiO_: a tridymite 298.

T 1 CUD tnr 

OEG K

298.15

M M

T 298

(KCAL)

0.000

UNCERTAINTY

390

390

400

500

600

700

800

900

1000

1100

1140

1200

1300

1400

1500

1600

1700

1743

1800

1900

20CO

MELTING 

HEAT OF 

H -H

298 0

1.085

1.125

1.270

2.710

4.170

5.710

7.320

8.950

10.590

12.250

12.928

13.940

15.650

17.370

19.100

20.850

22.610

23.373

24.390

26.180

27.980

POINT 

FUSION

S 

T

GRAM FORMULA WEIGHT 60.085 

15° to 390°K. & tridymite 390° to 2000°K.

FORMATION FROM THE ELEMENTS

T 298 ENTHALPY FREE ENERGY

(CAL/DEG-GFW)

10.50

0.10

13.66

13.76

14.13

17.34

20.00

22.37

24.52

26.44

28.17

29.75

30.25

31.22

32.59

33.87

35.06

36.19

37.25

37.69

38.27

39.24

40.16

10.50

0.10

10.68

10.88

10.95

11.92

13.05

14.21

15.37

16.50

17.58

18.61

19.01

19.60

20.55

21.46

22.33

23.16

23.95

24.28

24.72

25.46

26.17

DEC K 

KCAL 

KCAL

(KCAL/GFW)

-216.895 -204.076

0.570 0.580

-216.920 -200.120

-216.880 -200.120

-216.865 -199.692

-216.702 -195.415

-216.569 -191.171

-216.396 -186.950

-216.192 -182.758

-215.996 -178.590

-215.813 -174.439

-215.631 -170.308

-215.555 -168.662

-215.435 -166.198

-215.234 -162.107

-215.036 -158.032

-214.841 -153.974

-214.638 -149.928-

-226.506" "-1457775"""

-226.386 -143.735

-226.225 -141.036

-225.940 -136.315

-225.650 -131.606

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME o. 63408

LOG K

149.591

0.425

112.143

112.143

109.106

85.416

69.634

58.368

49.927

43.368

38.124

33.837

22.334

30.269

27.253

24.670

22.434

20.479

18.741

18.022

17.124

15.680

14.381

OEG K 

KCAL 

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 OEG K.

RFFERENCES 74 131 95 COMPILED 

4-29-67
140 THERMODYNAMIC PROPERTIES OF MINERALS 

COESITE GRAM FORMULA WEIGHT 60.085

SiO2 : Crystals 298.15° to 1800°K.

TEMP. 

OEG K

29fl.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1.189

2.501

3.918

5.417

6.969

8.588

10.279

12.015

13.779

15.555

17.354

19.142

20.921

22.709

24.510

S -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

9.65

0.10

13.07

15.99

18.56

20.86

22.92

24.83

26.61

28.26

29.80

31.24

32.56

33.81

34.95

36. C3

37.07

9.65

0.10

10.10

10.99

12.03

13.12

14.21

15.29

16.33

17.34

18.32

19.27

20.16

21.05

21.88

22.67

23.46

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFH)

-216.440

0.500

-216.491

-216.456

-216.366

-216.236

-216.088

-215.903

-215.669

-215.411

-215.141

-214.874

-214.597

-214.344

-2,14.112

-225.952

-225.650

-203.367

0.510

-198.895

-194.495

-190.106

-185.733

-181.378

-177.050

-172.735

-168.451

-164.201

-159.987

-155.755

-151.597

-147.419

-143.150

-138.307

LOG K

149.072

0.374

108.671

85.013

69.246

57.988

49.550

42.993

37.751

33.468

29.905

26.896

24.314

22.088

20.136

18.403

16.793

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEC K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.49333 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 OEG K.

REFERENCES 163 61

131

61 COMPILED 

5-17-67
STISHOVITE

Si02 : Crystals 298.15°

TPUD U _U 1 cnr n ~n 

T 298

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1.160

2.444

3.832

5.303

6.826

8.417

10.079

11.767

13.522

15.270

17.040

18.800

20.550

22.310

24.080

to 1800°K

GRAM FORMULA WEIGHT 60.085

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/DEG-GFW)

6.64

0.10

9.98

12.84

15.36

17.62

19.65

21.53

23.28

24.90

26.42

27.83

29.14

30.37

31.50

32.56

33.57

6.64

0.10

7.08

7.95

8.98

10.05

11.12

12.18

13.20

14.19

15.15

16. C8

16.97

17.84

18.66

19.44

20.19

FREE ENERGY LOG K

(«CAL/GFW)

-205.860

0.500

-205.940

-205.933

-205.872

-205.770

-205.651

-205.494

-205.289

-205.059

-204.818

-204.579

-204.331

-204.106

-203.903

-215.771

-215.500

-191.890

0.510

-187.108

-182.395

-177.692

-172.998

-168.321

-163.667

-159.021

-154.402

-149.818

-145.264

-140.705

-136.204

-131.689

-127.067

-121.851

140.659

0.374

102.231

79.725

64.724

54.012

45.983

39.744

34.754

30.677

27.286

24.421

21.965

19.845

17.988

16.335

14.795

MELTING POINT 

HFAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.33494 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 OEG K.

REFERENCES 163 61 61 COMPILED 

5-17-67
142 THERMODYNAMIC PROPERTIES OF MINERALS

SILICA GLASS GRAM FORMULA WEIGHT 60.085 

SiO2 : Glass 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

DEG K (KCAL)

5 -(G -H )/T 

T T» 298 

(CAL/DEG-GFW)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.230

2.550

3.950

5.430

6.990

8.610

10.280

11.960

13.700

15.450

17.240

19.080

20.980

22.930

24.920

26.950

29.010

11.23

0.05

14.87

17.81

20.36

22.64

24.72

26.63

28.39

30.01

31.50

32.90

34.23

35.50

36.72

37.90

39.04

40.14

41.20

11.33 

O.C5

11.79 

12.71 

13.78 

14.88 

15.98 

17.C6 

18.11

19.12

20.08

21.01

21.91

22.78

23.61

24.41

25.19

25.95

26.69

 215.870 

0.500

 203.298 

0.510

149.021

0.374

-215.880

-215.837

-215.764

-215.653

-215.497

-215.311

-215.098

-214.876

-214.650

-214.409

-214.141

-213.836

-213.483

-225.161

-224.670

-224.145

-223.595

-199.002

-194.784

-190.581

-186.393

-182.222

-178.075

-173.943

-169.838

-165.748

-161.684

-157.640

-153.627

-149.619

-145.533

-140.866

-136.228

-131.629

108.730

85.140

69.419

58.194

49.781

43.242

38.015

33.744

30.187

27.181

24.609

22.383

._-2Q.437

18.709

17.103

15.670

14.384

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.65177 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 161

178

95

180

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 143

CASSITERITE GRAM FORMULA WEIGHT 150.689

:3= = = = = s3=s = = = r= =============

Sn02 : Crystals 298.15° to melting point 1903°K.

TEKP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1.510

3.100

4.780

6.550

8.390

10.280

12.210

14.190

16.210

18.260

20.340

22.440

S -(G -H )/ 

T T 298 

(CAL/DEG-GFV.)

12.50

0.30

16.84

20.38

23.45

26.18

28.63

30.85

32.88

34.77

36.53

38.17

39.71

41.16

12.50

0.30

13.C6

14.18

15.48

16.82

18.14

19.43

20.67

21.87

23.02

24. 12

25.18

26.20

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-138.820

0.150

-138.714

-138.565

-Y40"i'oTO

-139.703

-139.346

-138.960

-138.537

-138.086

-137.594

-137.091

-136.555

-136.016

-124.266

0.180

-119.305

-114.468 -TWT "3^6

-104.270

-99.224

-94.237

-89.283

-84.381

-79.525

-74.708

-69.919

-65.189

LOG K

91.089

0.132

65.185

50.034 ~yf»vm

32.554

27.107

22.884

19.513

16.765

14.483

12.560

10.915

9.498

MELTING POINT 

HEAT OF FUSION

H -H 

?98 0

1902 DEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.51506 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

TIN........ M. P. 505 DEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
144 THERMODYNAMIC PROPERTIES OF MINERALS 

STRONTIUM OXIDE GRAM FORMULA WEIGHT 103.619

SrO: Crystals 298.15° to 2000°K.

TEPP. H -H

T 298 

DEC K (KCAL)

> -(G -H )/T 

T T 2<38 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 

500 

6CO 

700 

800 

900 

1000

1100

1200

1300

1400

1500

1600

1700

1800

1.170

2.340

3.550

4.800

6.090

7.410

8.740

10.070

11.400

12.740

14.090

15.450

16.820

18.200

19.590

13.00

0.20

16.37

18.98

21.18

23.11

24.83

26.39

27.79

29.06

30.21

31.28

32.28

33.22

34.11

34.94

35.74

13.00

0.20

13.44 

14.30 

15.26 

16.25 

17.22 

18.16 

19.C5

19.91

20.71

21.48

22.22

22.92

23.60

24.23

24.86

-144.440 

0.400

-137.285 

0.440

100.632

0.323

-144.292

-144.167

-144.045

-143.934

-143.823

-143.940

-143.933

-146.253

-146.087

-145.915

-145.737

-145.553

-145.361

-178.241

-177.796

-134.863

-132.519

-130.194

-127.901

-125.618

-123.343

-121.051

-118.641

-116. 122

-113.632

-111.153

-108.692

-106.246

-102.567

-98.131

73.686

57.924

47.423

39.932

34.317

29.952

26.456

23.572

21.149

19.103

17.352

15.836

14.513

13.186

11.915

MELTING POINT 2693 DEC K 

HEAT OF FUSION KCAL

H -H N KCAL 

298 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.49450 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

STRONTIUM.. ALPHA-GAMMA 862, M. P. GAMMA 1043, B. P. 1648 OEG K.

REFERENCES 74 78 108 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 145

THORIANITE GRAM FORMULA WEIGHT 264.037

= = = === = = = = = = = ==='== = = = = = = = a = i =

ThO-: Crystals 298.15° to 2000°K.

TEMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.600

3.210

4.890

6.620

8.390

10.200

12.050

13.940

15.860

17.800

19.760

21.740

23.740

2 5. '7 50

27.770

29.800

31.840

S -CG -H )/ 

T T 2.98 

(CAL/OEG-GFW)

15.59

0.05

20.20

23.79

26.85

29.51

31.88

34.01

35.96

37.76

39.43

40.98

42.43

43.80

45.09

46.31

47.46

48.56

49.61

15.59

0.05

16.20

17.37

18.70

20. C5

21.39

22.68

23.91

25.09

26.21

27.29

28.32

29.31

30.25

31.16

32.03

32.88

33.69

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-293.200

0.400

-293.004

-292.825

-292.630

-292.438

-292.256

-292.080

-291.907

-291.746

-291.584

-291.441

-291.315

-291.216

-291.123

-291.735

-291.704

-291.669

-296. 129

-279.436

0.410

-274.759

-270.218

-265.714

-261.240

-256.798

-252.379

-247.973

-243.596

-239.215

-234.856

-230.503

-226.179

-221.837

-217.481

-213.103

-208.732

-204.285

204.831

0.301

150.121

118.112

96.786

81.562

70.154

61.286

54.194

48.398

43.567

39.483

35.983

32.954

30.301

27.959

25.874

24.010

22.323

MF.LTING POINT 

HEAT OF FUSION

H -H 

298 0

3493 OEG K

KCAL 

2.5244 KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.63033 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

THORIUM.... ALPHA-BETA 1673, M. P. BETA 1968 OEG K.

REFERENCES 156 78 22 COMPILED 

6-13-66
146 

RUTILE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 79.899

TiO 2 : Crystals 298.15° to melting point 2103°K.

TEMP. H -H 

T 298 

DEG K (KCAU

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

1.540

3.100

4.735

6.440

8.160

9.900

11.650

13.420

15.200

17.000

18.820

20.660

22.530

24.420

26.340

28.280

30.250

S -(G -H )/l 

T T 298 

(CAL/DEG-GFh)

12.04

0.04

16.47

19.95

22.93

25.55

27.85

29.90

31.74

33.43

34.98

36.42

37.77

39.04

40.24

41.39

42.48

43.53

44.54

12. C4

0.04

12.62

13.75

15.04

16.35

17.65

18.90

20.09

21.23

22.31

23.34

24.33

25.27

26.16

27.03

27.85

28.65

29.41

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFH)

-225.760

0.100

-225.571

-225.385

-225.170

-224.932

-224.723

-224.535

-224.373

-224.227

-225.071

-224.851

-224.642

-224.445

-224.249

-224.063

-223.879

-223.705

-227.222

-212.559

0.110

-208.074

-203.723

-199.412

-195.127

-190.889

-186.670

-182.469

-178.288

-174.082

-169.839

-165.622

-161.418

-157.203

-153.022

-148.842

-144.682

-140.418

155.810

0.081

113.686

89.047

72.636

60.921

52.148

45.330

39.878

35.422

31.705

28.552

25.855

23.519

21.473

19.672

18.072

16.642

15.344

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

210 DEG K 

KCAL 

2.C720 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.44981 CAL'/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 111 COMPILED 

6-13-66
ANATASE

PROPERTIES AT HIGH TEMPERATURES 1.47

GRAM FORMULA WEIGHT 79.899

TiO : Crystals 298. 15°' to 1300°K.

TCftl D U _LJ 1 tflr n n 

T 298

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400 1.540

500 3.100

600 4.735

700 6.440

800 8.170

900 9.930

1000 11.720

11CO 13.530

1200 15.350

1300 17.180

FORMATION FROM THE ELEMENTS

I u n l/i

T T 298 ENTHALPY

(CAL/DEG-GFW)

11.93

0.07

16.36

19.84

22.82

25.45

27.75

29.82

31.71

33.44

35.02

36.48

11.93

0.07

12.51

13.64

14.93

16.25

17.54

18.79

19.99

21.14

22.23

23.26

FREE ENERGY LOG K

(KCAL/GFW)

-225.860

0.320

-225.671

-225.485

-225.270

-225.032

-224.813

-224.605

-224.403

-224.217

-225.021

-224.771

-212.626

0.330

-208.130

-203.768

-199.446

-195.157

-190.899

-186.668

-182.469

-178.289

-174.080

-169.837

155.859

0.242

113.717

89.067

72.648

60.930

52.151

45.329

39.878

35.423

31.704

28.552

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.49044 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

TITANIUM... ALPHA-EETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 162 COMPILED 

4-29-67
148 THERMODYNAMIC PROPERTIES OF MINERALS 

URANINITE GRAM FORMULA WEIGHT 270.029

U02 : Crystals 298.15° to 2000°K.

TEMP. 

OEG K

29fl.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

17CO

1300

1900

2000

1.680

3.470

5.340

7.280

9.250

11.250

13.280

15.340

17.420

19.510

21.620

23.750

25.900

28.070

30.260

32.470

34.700

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

18.63

0.10

23.47

27.46

30.86

33.85

36.48

38.83

40.97

42.94

44.75

46.42

47.98

49.45

50.84

52.16

53.41

54.60

55.75

18.63

0.10

19.27

20.52

21.96

23.45

24.92

26.33

27.69

28.99

30.23

31.41

32.54

33.62

34.65

35.65

36.60

37.51

38.40

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-259.200

0.600

-258.944

-258.620

-258.300

-258.008

-257.786

-257.650

-258.187

-259.066

-258.744

-258.431

-258.095

-260.846

-260.493

-260.120

-259.734

-259.334

-258.919

-246.569

0.610

-242.295

-238.168

-234. 102

-230.093

-226.120

-222.170

-218. 193

-214.161

-210.083

-206.045

-202.015

-197.819

- 19*3. 607

-189.453

-185.291

-181. 166

-177.095

180.739

0.447

132.383

104.103

85.271

71.838

61.773

53.950

VT.lll

42.550

38.261

34.639

31.536

28.822

26.445

24.356

22.497

20.839

19.352

MELTING POINT 3151 DEG K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

ROILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.58838 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

URANIUM.... ALPHA-BETA 941, BETA-GAMMA 1C48, M. P. 1405 DEG K.

REFERENCES 74 7fl 22 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 149

KARELIANITE

S = 8333 33* 3333 3 33B3 3= 33 = 3,3= S3 I

GRAM FORMULA WEIGHT 149.882

S333333=S333333=3333 3333333 = 333 = 33333

V2 0 : Crystals 298.15° to 1800 8 K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

OEG K (KCAL)

> -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100 

1200 

1300 

14CO 

1500

1600

1700

1800

2.720

5.590

8.600

11.700

14.870

18.100

21.370

24.660

27.960

31.360

34.940

38.670

42.480

46.370

50.350

23.53

0.30

31.36

37.76

43.25

48.02

52.25

56.06

59.50

62.64

65.51

68.23

70.98

73.45

75.91

78.26

80.54

23.53

0.30

24.56

26.58

28.92

31.31

33.66

35.95

38.13

40.22

42.21

44.11

46.02

47.67

49.36

50.98

52.57

 291.290 

0.380

 290.904

 290.402

 289.827

 289.220

 288.601

 287.980

 287.380

 286.833

 286.345

 285.824

 285.186

 284.467

 283.746

 283.031

 282.313

 272.273 

0.400

 265.830

 259.617

 253.524

 247.519

 241.593

 235.755

 229.984

 224.271

 218.603

 212.998

 207.556

 201.874

 196.401

 190.954

 185.535

199.581

0.293

145.242

113.478

92.346

77.279

66.000

57.249

50.263

44.558

39.813

35.808

32.401

29.413

26.827

24.549

22.527

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.71343 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

VANADIUM... M. P. 2175 DEG K.

REFERENCES 74 78 110 COMPILED 

4-29-67
150 THERMODYNAMIC PROPERTIES OF MINERALS 

TUNGSTEN TRIOXIDE GRAM FORMULA HEIGHT 231.848

WO3 : Crystals (monoclinic ?) 298.15° to 1050°K. Tetragonal

crystals 1050° to melting point 1745°K. Liquid 1745° to 

2000°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

DEC K (KCAL)

5 -<G -H )/T 

T T 298 

(CflL/OEG-GFVt)

298.15 0. 

UNCERTAINTY

000 18 

0

.14 

.12

18. 

0.

14 

12

-201. 

0.

460 

200

-182. 

0.

631 

210

133.

0.

871 

154

400

500

600

700

800

900

1000

1050

1.880

3.940

6.130

8.400

10.710

13.050

15.420

16.640

23.55

28.14

32.13

35.63

38.71

41.46

43.96

45.15

18.85

20.26

21.91

23.63

25.32

26.96

28.54

29.30

 201.268

 200.910

 200.471

 199.994

 199.514

 199.036

 198.553

 198.278

 176.222

 170.000

 163.862

 157.796

 151.802 

145.857

 139.977

 137.050

96.283

74.307

59.687

49.266

41.470

35.419

30.592

28.526

1050

1100

1200

1300

1400

1500

1600

1700

1745

1745

1800

1900

2000

17.050

18.240

20.630

23.060

25.510

27.990

30.500

33.030

34.180

51.730

53.460

56.610

59.760

45.54

46.65

48.73

50.67

52.49

54.20

55.82

57.36

58.02

68. C8

69.06

70.76

72.38

29.30

30.07

31.54

32.93

34.27

35.54

36.76

37.93

38.44

. 38.44

39.36

40.97

42.50

-197.868

-197.647

-197.193

-196.719

-196.245

-195.760

-195.261

-194.758

-194.530

-176.980

-176.374

-175.286

-174.214

-137.050

-134.150

-128.407

-122.684

-117.005

-111.367

-105.756

-100. 182

-97.680

-97.680

-95.202

-90.715

-86.289

28.526

26.653

23.386

20.625

18.265

16.226

14.446

12.879

12.234

12.234

11.559

10.435

9.429

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1745 DEG K BOILING POINT DEC K

17.550 KCAL HEAT OF VAPOR. KCAL

2.949 KCAL MOLAR VOLUME 0.75550 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

TUNGSTEN... M. P. 3680 DEG K.

REFERENCES 90 90 170 COMPILED 

2-12-67
PROPERTIES AT HIGH TEMPERATURES 151

ZINCITE GRAM FORMULA WEIGHT 81.369

ZnO: Crystals 298.15° to 2000°K.

TEMP. H -H

T 298 

DEG K (KCAL)

5 -<G -H )/T 

T T 298 

(CAL/DEG-GFK)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900,

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

070

190

350

530

740

6.970

8.220

9.500

10.800

12.120

13.450

14.800

16.160

17.530

18.910

20.300

21.700

10.43

0.10

13.51

16.01

18.12

19.94

21.56

23.00

24.32

25.54

26.67

27.72

28.71

29.64

30.52

31.35

32.14

32.89

33.61

10.43

0.10

10.83

11.63

12.54

13.47

14.38

15.26

16.10

16.90

17.67

18.40

19.10

19.77

20.42 

21.C4 

21.63 

22.21 

22.16

-83.250 

0.200

 76.089 

0.210

55.775

0.154

-83.172

-83.057

-82.945

-84.614

-84.553

-84.480

-84.393

-84.283

111.667

111.272

110.871

110.453

110.028

109.596

109.158

108.712

108.258

-73.655

-71.284

-68.944

-66.600

-64.036

-61.462

-58.912

-56.374

-53.394

-48.543

-43.737

-38.957

-34.209

-29.485

-24.795

-20.115

-15.457

40.243

31.158

25.113

20.793

17.494

14.925

12.875

11.201

9.724

8.161

6.828

5.676

4.673

3.791

3.010

2.314

1.689

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2242 DEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.34269 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ZINC....... M. P. 692.7, B. P. 1184 OEG K.

REFERENCES 74 78 22 COMPILED 

6-13-66
152 THERMODYNAMIC PROPERTIES OF MINERALS

BADDELEYITE GRAM FORMULA WEIGHT 123.219

ZrO_: Monoclinic crystals 298.15° to 1478°K. Tetragonal crystals 

1478° to 2000°K.

TFMP. H -H S -<G -H )/T

T 298 T T 298

OEG K (KCAL) (CAL/DEG-GFW)

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

4CO 

500 

600 

700 

800 

900 

1000

1600

1700

1800

1900

2000

1.475

3.050

4.690

6.380

8.120

9.910

11.730

24.210

25.990

27.770

29.550

31.330

12.04

0.08

16.28

19.79

22.78

25.38

27.72

29.83

31.74

12.C4 

O.C8

12.59

13.69

14.96

16.26

17.57

18.81

20.01

-262.300 

0.400

-262.195

-262.022

-261.841

-261.654

-261.450

-261.219

-260.980

-248.505 

0.410

-243.804

-239.224

-234.683

-230.168

-225.699

-221.245

-216.807

41.37

42.45

43.47

44.43

45.34

26.23

27.16

28.04

28.87

29.67

 259.303

 259.208

 259.126

 259.057

 259.001

 190.377

 186.074

 181.778

 177.479

 173.183

182.158

0.301

133.208

104.565

85.483

71.861

61.658

53.725

47.383

1100

1200 

1300 

1400 

1478

1478 

1500

13.570

15.420 

17.280 

19.150 

20.620

22.040 

22.430

33.50

35.11 

36.59 

37.98 

39.00

39.96 

40.22

21.16

22.26 

23.29 

24.30 

25.05

25.05 

25.26

-260.749

-261.485 

-261.256 

-261.032 

-260.857

-259.437 

-259.411

-212.409

-207.977 

-203.516 

-199.090 

-195.638

-195.638 

-194.688

42.202

37.878 

34.214 

31.079 

28.928

28.928 

28.366

26.004

23.921

22.071

20.415

18.925

MELTING POINT

HEAT OF FUSION

H -H

298 0

3123 DEG K

20.800 KCAL

2.C900 KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

DEG K

KCAL

0.50550 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ZIRCONIUM.. ALPHA-BETA 1143.2t M. P. BETA 2128.2 OEG K.

REFERENCES 74 148 67

148

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES

PEROVSKITE

= ==* = a se = =

CaTiO

153

135.978

a crystals (orthorhombic) 298.15° to 1530°K. 0 crystals 

(cubic) 1530° to 2000°K.

GRAM FORMULA WEIGHT

= = =====33:== = = == = = = =

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

2.680

5.430

8.300

11.260

14.270

17.310

20.380

23.490

26.640

29.820

33.030

36.270

S -(G -H I/ 1 

T T 298 

(CAL/OEG-GFH)

22.40

0.10

30.11

36.24

41.47

46.03

50.05

53.63

56.87

59.64

62.58

65.12

67.50

69.74

22.40

0.10

23.41

25.38

27.64

29.94

32.21

34.40

36.49

38.49

40.38

42.18

43.91

45.56

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

IKCAL/GFW)

-396.900

0.410

-396.583

-396.257

-395.910

-395.571

r3"95T3b6'

-395.055

-394.886

-394.780 -3-9T.-4T8-

-397.006

-396.579

-396.158

-376.517

0.420

-369.593

-362.887

-356.247

-349.656

" "ttfrff?

-336.611

-330.130

-323.671

-5fT^G56

-310.335

-303.703

-297.080

275.994

0.308

201.936

158.617

129.763

109.167 -9-5773-6-

81.740

72.150

64.307 5T.-74-6-

52.172

47.410

43.284

1530 37.260 70.39 46.04 -396.033 -295.096 42.152

1530 

1600 

1700

 1800 

1900

2000

37.810 

40.050 

43.250

46.460 

49.680

52.910

70.75 

72.18 

74.12

75.96 

77.69

79.34

46.04 

47.15 

48.68

50.15 

51.54

52.88

-395.483 

-395.230 

-394.915

-430.905 

-430.398

-433.605

-295.096 

-290.509 

-283.968

-276.545 

-267.965

-259.320

42.152 

39.682 

36.506

33.577 

30.823

28.337

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2188 OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.80368 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737i P. P. BETA 1123, B. P. 1756 DEG K. 

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 80

151

COMPILED 

4-29-67
154 THERMODYNAMIC PROPERTIES OF MINERALS

CHROMITE GRAM FORMULA WEIGHT 223.837

FeCr.O,: Crystals 298.15° to 1900°K. 2 4

TEMP. H -H

T 298 

DEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

3.450

7.180

11.130

15.220

19.410

23.680

28.030

32.450

36.920

41.430

45.990

50.590

55.230

59.910

64.630

69.390

34.90

0.40

44.83

53.14

60.34

66.64

72.24

77.26

81.85

86.06

89.95

93.55

96.93

100.11

103.10

105.94

108.64

111.11

34.90

0.40

36.20

38.78

41.79

44.90

47.98

50.95

53.82

56.56

59.18

61.68

64.08

66.38

68.58

70.70

72.73

74.59

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.0518 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CHROMIUM... M. P. 2130 OEG K.

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 DEG K.

REFERENCES 74 78 COMPILED 

6-13-66
ILMENITE

PROPERTIES AT HIGH TEMPERATURES 155

GRAM FORMULA WEIGHT 151.745

:==========================;

FeTi03 : Crystals 298.15° to melting point 1640°K. Liquid 1640' 

to 2000°K.

TEMP. H -H

T 298 

DEG K (KCAL)

FORMATION FROM THE ELEMENTS 

> -(G -H )/T 

T T 298 ENTHALPY FREE ENERGY LOG K 

(CAL/DEG-GFVi) (KCAL/GFW)

298.15 0. 

UNCERTAINTY

000 25

0

.30

.30

25. 

0.

30

30

-295. 

0.

560 

380

-277. 

0.

065 

390

203

0

.093 

.286

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

2.595

5.330

8.200

11.130

14.150

17.250

20.430

23.650

26.900

30.200

33.540

36.920

32.77

38.87

44.10

48.61

52.65

56.30

59.65

62.72

65.54

68.18

70.66

72.99

26.28

28.21

30.43

32.71

34.96

37.13

39.22

41.22

43.12

44.95

46.70

48.38

-295.313

-294.992

-294.650

-294.366

-294.126

-293.96?

-293.946

-294.150

-295.118

-294.646

-294.189

-293.738

-270.779

-264.682

-258.653

-252.672

-246.742

-240.822

-234.920

-229.003

-223.044

-217.062

-211. 127

-205.205

147.946

115.692

94.214

78.887

67.407

58.479

51.342

45.499

40.622

36.491

32.958

29.898

1600 

1640

1640

1700 

1800

1900

2000

40.360 

41.750

63.420

66.280 

71.040

75.800

80.560

75.21 

76.07

89.28

90.99 

93.72

96.29

98.73

49.98 

50.61

50.61

52.00 

54.25

56.40

58.45

-293.280 

-293.095

-271.425

-270.675 

-269.086

-271.219

-273.446

-199.311 

-196.960

-196.960

-194.238 ' 

-189.804

-185.261

-180.661

27.225 

26.247

.__26..24.7_

24.971 

23.045

21.310

19.742

MELTING POINT 1640 OEG K 

HEAT OF FUSION 21.670 KCAL

H -H KCAL 

298 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 0.75741 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. CELTA 1809 DEG K. 

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 80 COMPILED 

6-13-66
156 THERMODYNAMIC PROPERTIES OF MINERALS 

TITANOMAGNETITE GRAM FORMULA WEIGHT 223.592

Fe 2 Ti04 : Crystals 298.15° to 1600°K.

TEMP. H -H

T 298 

DEG K (KCAL)

> -<G -H 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100 

1200 

1300 

1400 

15CO 

1600

3.750

7.610

11.640

15.850

20.220

24.740

29.400

34.210

39.180

44.350

49.760

55.450

61.460

40.36

0.60

51.16

59.76

67.10

73.59

79.42

84.74

89.65

94.23

98.56

102.70

106.71

110.93

114.51

40.36

0.60

41.78 

44.54 

47.70 

50.95 

54'. 14 

57.25 

60.25

63.13

65.91

68.58

71.17

73.96

76.10

MELTING POINT 

HF.AT OF FUSION

H -H 

298 0

OEG K BOILING POINT ,OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.1190 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMKA-OELTA 1665,

M. P. CELTA 1809 DEG K. 

TITANIUM... ALPHA-BETA 1155, M. P. 1943 OEG K.

REFERENCES 74 78 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 157

GRAM FORMULA WEIGHT 239.591

Fe 2 Ti05 : Crystals 298.15° to 1800°K.

TEMP. H -H

T 298 

DEG K (KCAU

FORMATION FROM THE ELEMENTS 

> -(G -H )/T 

T T 298 ENTHALPY FREE ENERGY LOG K 

CCAL/DEG-GFH) JKCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

4.330

8.740

13.300

18.010

22.870

27.860

32.960

38.130

43.330

48.550

53.800

59.080

64.400

69.760

75.160

37.40

0.30

49.86

59.69

68.00

75.26

81.75

87.63

93.00

97.93

102.45

106.63

110.52

114.16

117.60

120.85

123.93

37.40

0.30

39.03

42.21

45.83

49.53

53.16

56.67

60.04

63.27 

66.'34 

69.28 

72.C9 

74.77

77.35

79.81

82.17

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT 

HEAT OF VAPOR, 

MOLAR VOLUME

DEG K' 

KCAL 

1.3033 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

COPPER..... M. P. 1357 DEG K.

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 COMPILED 

6-13-66
158 THERMODYNAMIC PROPERTIES OF MINERALS

SPINEL GRAM FORMULA WEIGHT 142.273

MgAl2 0 4 : Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

T 298 

DEC K (KCAL)

298.15 0.000 

UNCERTAINTY

T T 298 ENTHALPY FREE ENERGY LOG 

(CAL/DEG-GFK) (KCAL/GFH)

19.

0.

26 

10

19.

0.

26* 

10

-552 

0

.800 

.500

-522.

0.

961 

510

383. 

0.

K

339 

374

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

3.140

6.619

10.324

14.188

18.173

22.262

26.441

30.704

35.047

39.464

43.954

48.515

53.147

57.847

62.615

67.450

72.352

28.28

36.03

42.78

48.73

54.05

58.87

63.27

67.33

71.11

74.65

77.97

81.12

84.11

86.96

89.68

92.30

94.81

20.43

22.79

25.57

28.47

31.34

34.13

36.83

39.42

41.91

44.29

46.58

48.78

50.89

52.93

54.90

56.80

58.64

552.949 

552.833 

552.622 

552.378 

552.145 

551.959

559.017

558.730 

558.381 

557.974 5g77855"" 

587.051

586.188 

585.267 

584.290 

583.260 

582.173

-512.948 

-502.690 

-492.677 

-482.703 

-472.771 

-462.854

-452.423

-441.772 

-431.165 

"-409:191" -420.572

-396.460

-383.782 

-371.157 

-358.588 

-346.079 

-333.629

280.261 

219.725 

179.457 

150.706 

129.155 

112.396

98.877

87.772 

78.526 

70.704

63.877 

57.764

52.422 

47.715 

43.538 

39.808 

36.457

2408 DEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

H -H 3.6830 KCAL MOLAR VOLUME 0.94909 CAL/BAR

298 0

TRANSITIONS IN REFERENCE STATF ELEMENTS

ALUMINUM... M. P. 933 DEG K. 

MAGNESIUM.. M. P. 922. B. P. 1363 DEG K.

REFERENCES 148 78 115

151

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 159

PICROCHROMITE GRAM FORMULA WEIGHT 192.302 

MgCr 0 : Crystals 298.15° to 2000°K.

FORMATION FROM THE ELEMENTS

i -(G -H )/T 

T T 2<58 ENTHALPY FREE ENERGY LOG K 

ICAL/DEG-GFV.) (KCAL/GFWJ

TEMP. H -H

T 298 

OEG K (KCAL)

298.15 0.000 

UNCERTAINTY

400 

500 

6CO 

700 

800 

900 

1000

1100 

12CO 

1300 

1400 

1500

1600

1700

1800

1900

2000

3.350

7.040

10.930

14.940

19.060

23.260

27.520

31.810

36.130

40.490

44.890

49.340

53.840

58.370

62.930

67.520

72.140

25.30

0.20

34.94

43.16

50.25

56.43

61.93

66.87

71.36

75.45

79.21

82.69

85.96

89.03

91.93

94.67

97.28

99.76

102.13

25.30

0.20

26.56 

29.C8 

32.C3 

35.09 

38.10 

41.03 

43.84

46.53

49.10

51.54

53.90

56.14

58.28 

60.33 

62.32 

64.22 

66. C6

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.0411 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CHROMIUM... M. P. 2130 OEG K. 

MAGNESIUM.. M. P. 922 f B. P. 1363 DEG K,

REFERENCES 74 78 COMPILED 

6-13-66
160 THERMODYNAMIC PROPERTIES OF MINERALS 

MAGNESIOFERRITE GRAM FORMULA WEIGHT 200.004

MgFe O : a crystals 298.15° to 665°K. 0 crystals 665° to 1230°K. 2 4

7 crystals 1230° to 2000°K.

DEG K

298.15

T 298

(KCALI

0.000

UNCERTAINTY

400

500

600

665

665

700

800

900

1000

1100

1200

1230

1230

1300

1400

1500

1600

1700

1800

1900

2000

MELTING 

HEAT OF

H -H

298 0

3.860

7.870

12.270

15.600

15.600

17.190

21.730

26.270

30.810

35.350

39.890

41.250

41.600

44.630

49.000

53.520

58.190

63.000

67.960

73.060

78.300

POINT 

FUSION

S -i

T T 298

(CAL/DEG-GFM

29.60

0.20

40.70

49.63

57.64

62.91

62.91

65.24

71.30

76.65

81.43

85.76

89.71

90.83

91.11

93.51

96.75

99.87

102.88

105.80

108.63

111.39

114. C7

29.60

0.20

31.05

33.89

37.19

39.45

39.45

40.68

44. 14

47.46

50.62

53.62

56.47

57.29

57.29

59.18

61.75

64.19

66.51

68.74

70.87

72.94

74.92

DEC K 

KCAL

KCAL

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY

(KCAL/GFH)

-341.720 -315.112

0.440 0.450

-341.199 -306.093

-340.640 -297.371

-339.876 -288.780

-338.961 -283.284

-338.961 -283.284

-338.786 -280.372

-338.304 -272.067

-338.103 -263.786

-340.454 -255.346

-341.132 -246.789

-341.408 -238.230

-341.297 -235.637

-340.947 -235.637

-340.802 -229.673

-370.965 -220.314

-370.384 -209.565

-369.705 -198.865

-369.496 -188.196

-368.791 -177.528

-375.338 -166.579

 -374.495 -155.595

BOILING POINT 

HEAT OF VAPOR.

MOLAR VOLUME 1.0652

LOG K

230.983

0.330

167.241

129.980

105.188

93.100

93.100

87.536

74.325

64.056

55.806

49.032

43.387

41.869

41.869

38.611

34.392

30.533

27.164

24.194

21.555

19.161

17.003

DEG K 

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 OEG K.

MAGNESIUM.. M. P. 922, B. P. 1363 OEG K.

REFERENCES 74 78 93 COMPILED 

5-06-67
GEIKELITE

MgTiO^: Crystals

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

400 2.500 

500 5.130 

600 7.900 

700 10.790 

800 13.740 

900 16.750 

1000 19.800

1100 22.900 

1200 26.030 

1300 29.190 

1400 32.390 

1500 35.660

1600 39.010 

1700 42.450 

1800 45.980 

1900 49.600 

2000 53.310

GRAM FORMULA WEIGHT 120.210

298.15 0 to 2000°K,

S -<G -H )/T 

T T 298 

(CAL/DEG-GFKI

17.82 

0.10

25.01 

30.87 

35.92 

40.37 

44.31 

47.85 

51.07

54.02 

56.75 

59.27 

61.67 

63.92

66.08 

68.17 

70.19 

72.15 

74.05

17.82 

0.10

18.76 

20.61 

22.75 

24.96 

27.13 

29.24 

31.27

33.20 

35. C6 

36.82 

38.53 

40.15

41.70 

43.20 

44.65 

46.04 

47.29

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-375.900 

0.270

-375.734 

-375.482 

-375.176 

-374.836 

-374.518 

-374.218

=3757515 

-375.810

-376.508 

-376.136

-406.104 

-405.410

-404.669 

-403.871 

-403.019 

-402.109

-354.790 

0.280

-347.596 

-340.592 

-333.641 

-326.737 

-319.894 

-313.074

'=3557130 

-299.135

-292.158 

-285.123

-277.354 

-268.177

-259.041 

-249.966 

-240.950 

-231.979

260.067 

0.205

189.917 

148.872 

121.528 

102.011 

87.391 

76.024 

 557905

59.432

53.209 

47.933

"437297 

39.073

35.383 

32.135 

29.255 

 

26.684 257351

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1903 OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

3.2550 KCAL MOLAR VOLUME 0.73757 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MAGNESIUM.. M. P. 922t B. P. 1363 OEG K. 

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 78 80 COMPILED 

4-29-67
162 THERMODYNAMIC PROPERTIES OF MINERALS 

BROMARGYRITE GRAM FORMULA WEIGHT 187.779

AgBr: Crystals 298.15° to melting point 703°K. Liquid 703° to 

1000°K.

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0. 

ONCERTAINTY

400 1. 

500 2. 

600 4. 

700 6. 

703 6.

703 

800 

900 

1000

8. 

9. 

11. 

12.

000

355 

840 

480 

275

520 

970 

460 

950

S -<G -H )/l 

T T 298 

(CAL/OEG-GFW)

25

0

29 

32 

35 

38 

38

41 

43 

45 

47

.60 

.10

.50 

.81 

.79 

.56 

.64

.76

.68 

.43 

.00

25.60 

0.10

26.11 

27.13 

28.32 

29.60 

29.64

29.64 

31.22 

32.70 

34.05

FORMATION

r

FROM

ENTHALPY FREE 

(KCAL/GFW)

-23 

0

-27 

-26 

-26 

-25 

-25

-23 

-23 

-22 

-22

.990 

.300

.396 

.973 

.417 

.718 

.697

.507 

.131 

.775 

.440

-23 

0

-22 

-20 

-19 

-18 

-18

-18 

-17 

-17 

-16

THE ELEMENTS

ENERGY LOG

.158 

.310

.152 

.890 

.724 

.660 

.630

.630 

.978 

.348 

.765

16. 

0.

12. 

9. 

7. 

5. 

5.

5. 

4. 

4. 

3.

K

975 

227

103 

131 

184 

826 

79?

792 

911 

213 

664

703 06G K BOILING POINT DEG K

2.190 KCAL HEAT OF VAPOR. KCAL

H -H KCAL MOLAR VOLUME 0.69290 CAL/BAR

298 0

TRANSITIONS IN REFERENCE STATE ELEMENTS

SILVER..... M. P. 1234 OEG K. 

BROMINE.... B. P. 332.62 DEC K.

REFERENCES 74 78

158

158 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 163

CHLORARGYRITE GRAM FORMULA WEGHT 143.323

AgCl: Crystals 298.15° to melting point 728°K. Liquid 728° to 

1000°K.

TEMP. H -H

T 298 

OEG K (KCAL)

> -(G -H )/T 

T T 298 

(CAL/DEG-GFH)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

23.00

0.10

23.CO 

0.10

 30.370 

0.300

-26.242 

0.310

19.236

0.227

400 

500 

600 

700 

728

728 

800 

900 

1000

1.320 

2.720 

4.150 

5.660 

6.080

9.160 

10.310 

11.910 

12.510

26.81 

29.93 

32.54 

34.86 

35.45

39.68 

41.19 

43.07 

44.76

23.51 

24.49 

25.62 

26.77 

27.10

27.10 

28.30 

29.84 

32.25

-30.097 

-29.744 

-29.388 

-28.967 

-28.838

-25.758 

-25.420 

-24.950 

-25.502

-24.873 

-23.607 

-22.419 

-21.280 

-20.970

-20.970 

-20.522 

-19.931 

-20.404

13.590 

10.319 

8.166 

6.644 

6.295

6.295 

5.606 

4.840 

4.459

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

728 OEG K 

3.C80 KCAL 

KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.61489 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

SILVER..... M. P. 1234 OEG K.

REFERENCES 74 78

158

158

101

COMPILED 

5-06-67
164 . T.HERMODYNAMIC PROPERTIES OF MINERALS

HYDROPHILITE GRAM FORMULA WEIGHT 110.986

CaCl 2 : Crystals 298.15° to melting point 1055°K. Liquid 1055 8 to 

1700°K.

TEMP.

OEG K

298.

H _un

T 298

(KCAL)

15 0. 000

UNCERTAINTY

400

5CO

600

700

800

900

1000

1.

3.

5.

7.

9.

11.

13.

850

700

540

400

290

230

270

S

T

If U 1 G H

T

)/

298

(CAL/OEG-GFW)

27.

0.

32.

36.

40.

42.

45.

47.

*9.

20

30

53

66

02

68

40

69

84

27

0

27

29

30

32

33

35

36

.20

.30

.90

.26

.79

.31

.79

.21

.57

FORMATION

r 

ENTHALPY

FROM

FREE

THE ELEMENTS

ENERGY LOG K

(KCAL/GFW)

-190.000

0.150

-189.6*5

-189.333

-189.087

~19.8i.SZQ

-188.701

-188.481

-188.235

-179

0

-175

-172

-168

~1&5.

-162

-158

-155

.255

.180

.636

. 17*

.770

t.3.9.6.

.056

.7*0

.449

131.

0.

95.

75.

61.

5L*.

44.

38.

33.

397

132

963

257

474

612

272

5*7

973

1055 1*.*20 50.96 37.29 -188.090 -153.650 31.829

1055 

1100

1200 

1300 

1400 

15CO 

1600 

1700

21.200 

22.340

24.840 

27.320 

29.780 

32.210 

34.580 

36.860

57.38 

58.44

60.62 

62.60 

64.42 

66.10 

67.63 

69.01

37.29 

38.13

39.92 

41.58 

43.15 

44.63 

46.02 

47.33

-181.310 

-181.022

-182.182 

-181.344 

-180.528 

-179.744 

-179.022 

-178.391

-153.650

-149.777 

-147.094 

-144.498 

-141.943 

-139.459 

-136.998

31.829

27.278 

24.729 

22.557 

20.681

17.612

MELTING POINT 1055 DEC K 

HEAT OF FUSION 6.780 KCAL

H -H 

298 0

KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 1.21295 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 OEG K.

REFERENCES 74 78 141 COMPILED 

6-13-66
LAWRENCITE

= = = i

Fed

PROPERTIES AT HIGH TEMPERATURES 165

GRAM FORMULA WEIGHT 126.753

Crystals 298.15° to melting point 950°K. Liquid 950° to 

boiling point 1357°K. Ideal gas (monomer) 1347° to 1500°K.

TEMP.

DEC K

298.15

H LIn 

T 298

<KCAU

0.000

UNCERTAINTY

400

500

600

700

800

900

950

950

1000

1100

1200

1300

1347

1347

1400

1500

1.905

3.834

5.803

7.804

9.835

11.891

12.920

23.200

24.428

26.870

29.312

31.754

32.895

62.725

63.479

65.060

FORMATION FROM THE ELEMENTS

~ i u n i/i 

T T 298 ENTHALPY

(CAL/DEG-GFK)

28.19

0.50

33.68

37.98

41.57

44.66

47.37

49.79

50.94

61.76

62.98

65.31

67.44

69.39

70.24

92.39

92.99

94.04

28.19

0.50

28.92

30.31

31.90

33.51

35.08

36.58

37.34

37.34

38.55

40.88

43.01

44.96

45.82

45.82

47.65

50.67

FREE ENERGY LOG K

(KCAL/GFW)

-81.700

0.120

-81.275

-80.874

-80.504

-80.171

-79.896

-79.710

-79.640

-69.360

-69.227

-69.062

-68.690

-67.970

-67.630

-37.800

-37.989

-38.164

-72.273

0.200

-69.118

-66.120

-63.205

-60.358

-57.547

-54.758

-54.620

-54.620

-52.531

-50.867 -497245 

-47.656

-46.910

-46.910

-47. 347

-47.943

52.977

0.147

37.764

28.901

23.022

18.845

15.721

13.297

12.566

12.566

11.481

10.106

" 8.9S9

8.012

7.611

7.611

7.391

6.985

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

95C DEG K BOILING POINT 1347 DEC K

10.280 KCAL HEAT OF VAPOR. 29.830 KCAL

3.8890 KCAL MOLAR VOLUME 0.94312 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

IRON.... CURIE P. 1033f ALPHA-GAMMA 1184, GAMMA-DELTA 1665, 

M. P. DELTA 1809 DEC K.

REFERENCES 148 148 94

148

COMPILED 

5-06-67
166 THERMODYNAMIC PROPERTIES OF MINERALS 

MOLYSITE GRAM FORMULA WEIGHT 162.206

FeCl : Crystals 298.15° to melting point 577°K. Liquid 577° to 

boiling point 605°K. Ideal gas (dimer) 605° to 700°K.

TEMP. H -H

T 298 

DEC K (KCAL)

FORMATION FROM THE ELEMENTS

> -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

298.15 0.000 

UNCERTAINTY

400

500

577

2.475

5.165

7.373

34.02

0.60

41.14

47.13

51.22

34.02

0.60

34.95

36.80

38.44

 95.460 

0.200

 94.887

 94.152

 93.505

-79.827 

0.270

-74.569

-69.566

-65.850

58.515

0.198

40.743

30.407

24.942

577

600

605

17.673

18.406

18.566

69.07

70.34

70.58

38.44

39.66

39.89

 83.205

 82.944

 82.890

-65.850

-65.144

-65.040

24.942

23.729

23.495

605

700

23.796

25.849

79.22

82.36

39.89

45.43

 77.660

 77.608

-65.040

-62.988

23.495

19.666

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

577 DEG K 

10.300 KCAL 

4.7100 KCAL

BOILING POINT 605 DEG K 

HEAT OF VAPOR. 5.230 KCAL 

MOLAR VOLUME 1.3828 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033t ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 OEG K.

REFERENCES 148 148 94

148

COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 167

HYDROGEN CHLORIDE (IDEAL GAS) GRAM FORMULA WEIGHT 36.461

HC1: Ideal gas 298.15° to 2000°K.

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

0.710

1.408

2.112

2.823

3.546

4.281

5.030

5.793

6.569

7.356

8.156

8.965

9.783

10.610

11.445

12.287

13.135

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

44.65

O.C1

46.69

48.25

49.53

50.63

51.60

52.46

53.25

53.98

54.65

55.28

55.88

56.43

56.96

57.46

57.94

58.40

58.83

44.65

O.C1

44.92

45.44

46. Cl

46.60

47.16

47.71

48.22

48.71

49.18

49.63

50.05

50.46

50.85

51.22

51.58

51.93

52.26

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-22.062

0.150

-22.128

-22.206

-22.286

-22.365

-22.438

-22.504

-22.561

-22.610

-22.651

-22.687

-22.716

-22.743

-22.768

-22.789

-22.808

-22.825

-22.842

-22.777

0.160

-23.012

-23.224

-23.420

-23.602

-23.774

-23.937

-24.093

-24.244

-24.390

-24.536

-24.675

-24.814

-24.952

-25.087

-25.223

-25.355

-25.488

LOG K

16.696

0.117

12.573

10.151

8.531

7.369

6.495

5.813

5.266

4.817

4.442

4.125

3.852

3.615

3.408

3.225

3.062

2.916

2.785

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

2.C650 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 584.727 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 158

148

158 COMPILED 

2-12-67
168 THERMODYNAMIC PROPERTIES OF MINERALS

SYLVITE GRAM FORMULA WEIGHT 74.555

KC1: Crystals 298.15° to melting point 1044°K. Liquid 1044° to 

fictive boiling point 1750°K. Ideal gas (monomer) 1750° to 

2000°K.

T C M D

1 trtr«

DEC K

298.

H n _u

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1044

1044

1100

1200

1300

1400

1500

1600

1700

1750

1750

1800

1900

2000

1.272

2.561

3.889

5.254

6.664

8.132

9.681

10.399

16.681

17.665

19.424

21.183

22.942

24.701

26.460

28.219

29.099

66.239

66.703

67.630

68.559

S

_ t r I u

T T

(CAL/DEG

19.73

0.04

23.40

26.27

28.69

30.80

32.68

34.41

36.04

36.74

42.76

43.68

45.21

46.62

47.92

49.13

50.27

51.33

51.85

73.07

73.33

73.83

74.30

 U 1 /T n 9/1 

298

 -GFH)

19.73

O.C4

20.22

21.15

22.21

?3.29

24.35

25.37

26.36

26.78

26.78

27.62

29.02

30.33

31.53

32.66

33.73

34.73

35.22

35.22

36.27

38.24

40.02

FORMATION

ENTHALPY

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-104.370

0.200

-104.847

-104.728

-104.560

-104.350

-104.095

-103.784

-103.403

-122.242

-115.960

-115.505

-114.693

-113.882

-113.072

-112.263

-111.455

-110.648

-110.245

-73.105

-73.118

-73.147

-73.175

-97.693

0.210

-95.321

-92.950

-90.608

-88.304

-86.027

-83.788

-81.585

-80.614

-80.614

-78.742

-75.435

-72.200

-69.018

-65.894

-62.837

-59.813

-58.320

-58.320

-57.911

-57.063

-56.202

71.611

0.154

52.081

40.628

33.004

27.570

23.502

20.346

17.830

16.876

16.876

15.645

13.739

12.138

10.774

9.601

8.583

7.689

7.283

7.283

7.031

6.564

6.141

MELTING POINT 1044 DEC K

HEAT OF FUSION 6.282 KCAL

H -H 2.7170 KCAL

298 0

BOILING POINT 1750 DEC K

HEAT OF VAPOR. 37.140 KCAL

MOLAR VOLUME 0.89685 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

POTASSIUM.. M. P. 336.4, B. P. 1043.7 DEC K.

REFERENCES 148 78

148

148 COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 169 

CHLOROMAGNESITE GRAM FORMULA WEIGHT 95.218

MgCl 2 : Crystals 298.15° to melting point 987°K. Liquid 987° to 

boiling point 1710°K.

T£MO I t n r 

DEG K

298.15

H

~ U

M

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

987

987

1000

1100

1200

1300

1400

1500

1600

1700

1710

1.800

3.650

5.555

7.480

9.420

11.380

13.160

23.460

23.750

25.960

28.170

30.380

32.590

34.800

37.010

39.220

39.440

FORMATION FROM THE ELEMENTS

\ V* n 1 / I

T T 298 ENTHALPY

(CAL/DEG-GFW)

21.42

0.20

26.61

30.73

34.21

37.17

39.76

42.07

43.96

54.40

54.69

56.80

58.72

60.49

62.12

63.65

65.08

66.42

66.56

21.42

0.20

22.11

23.43

24.95

26.49

27.99

29.43

30.63

30.63

30.94

33.20

35.25

37.12

38.84

40.45

41.95

43.35

43.50 .

FREE ENERGY LOG K

(KCAL/GFW)

-153.350

0.110

-153.016

-152.658

-152.288

-151.935 '

-151.603

-151.284

-153.094

-142.794

-142.725

-142.192

-141.662

-141.134

-170.953

-170.146

-169.341

-168.537

-168.457

-141.521

0.130

-137.532

-133.700

-129.945

-126.244

-122.600

-118.989

-115.748

-115.748

-115.391

-112.680

-110.028

 

-107.407 "103:994 

-99.247

-94.554

-89.902

-89.440

103.737

0.095

75.144

58.440

47.332

39.415

33.493

28.894 "2"5 ."^TO

25.630

25.219

22.387

20.039

18. 057

16:534

14.460

12.915

11.558

11.431

1710 76.780 88.40 43.50 -131.117 -89.440 11.431

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

987 DEC K BOILING POINT 1710 OEG K

10.300 KCAL HEAT OF VAPOR. 37.340 KCAL

3.2910 KCAL MOLAR VOLUME 0.97538 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MAGNESIUM.. M. P. 922, B. P. 1363 DEC K.

REFERENCES 74 78

148

141

148

COMPILED 

4-15-67
170 THERMODYNAMIC PROPERTIES OF MINERALS 

SCACCHITE GRAM FORMULA WEIGHT 125.844

MnCl 2 : Crystals 298.15° to melting point 923°K. Liquid 923° to 

1400°K.

T CUD 1 tnr 

DEG K

298.

H

_LJn 

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

923

923

1000

1100

1200

1300

1400

1.850

3.730

5.640

7.590

9.600

11.680

12.170

21.140

22.880

25.140

27.400

29.660

31.920

S

T

(G -H )/T 

T 298

(CAL/DEG-GFW)

28.26

0.05

33.59

37.78

41.26

44.27

46.95

49.40

49.94

59.66

61.47

63.62

65.59

67.40

69.07

28.26

0.05

28.96

30.32

31.86

33.43

34.95

36.42

36.76

36.76

38.59

40.77

42.76

44.58

46.27

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY

(KCAL/GFH)

-115.038 -105.295

0.200 0.210

-114.723 -102.014

-114.391 -98.872

-114.155 -95.866

-113.788 -92.778

-113.484 -89.799

-113.149 -86.856

-113.072 -86.186

-104.102 -86.186

-104.258 -84.712

-103.800 -82.767

-103.345 -80.888

-102.907 TZ9.03L

-103.056 -77.190

LOG K

77.183

0.154

55.738

43.217

34.919

28.967

24.532

21.091

20.407

20.407

18.514

16.444

14.732

13.286

12.050

MELtlNG POINT 

HEAT OF FUSION

H -H 

298 0

923 DEG K

8.970 KCAL 

3.6020 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.0064 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, GETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 DEG K.

REFERENCES 74 21 94 COMPILED 

2-12-67
SALAMMONIAC

= = 3* = = r;e = = z

PROPERTIES AT HIGH TEMPERATURES 171

GRAM FORMULA WEIGHT 53.491

NH.C1: a crystals (CaCl structure) 298.15° to 457. 7°K.

0 crystals (rock salt structure) 457.7° to 500°K.

TEMP. H -H

T 298 

OEG K (KCAL)

> -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 2.340

3.810

22.70 

l.CO

29.43

32.86

22.70 

l.CO

23.58

24.53

 75.180 

0.200

 75.031

 74.945

 48.572 

0.360

 39.498

 34.260

35.604

0.264

21.580

16.359

457.7

500

4.750

5.650

34.91

36.79

24.53

25.49

 74.905

 73.897

 34.260

 30.733

16.359

13.433

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

5.425 KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.83795 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 148 148

158

148

158

COMPILED 

4-15-67
172 

HALITE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 58.443

NaCl: Crystals 298.15° to melting point 1073.8°K. Liquid 1073.8° 

to fictive boiling point 1791°K. Ideal gas (monomer) 1791° 

to 2000°K.

FORMATION FROM THE ELEMENTS

T 298 

OEG K (KCAL)

298.15 0.000 

UNCERTAINTY

a - lu -n i i \ 

T T 298 

(CAL/DEG-GFM

17.24 

0.05

17.

0.

24

05

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-98. 

0.

260 

300

-91. 

0.

807 

310

LOG K

67. 

0.

296 

227

400

500

600

700

800

900

1000

1.253

2.523

3.831

5.177

6.568

8.015

9.529

1073.8 10.695

20.85

23.68

26.07

28.14

30.00

31.70

33.29

34.42

17.72 

18.63 

19.68 

20*74 

21.79 

22.79 

23.76

24.46

-98.785

-98.683

-98.530

-98.329

-98.076

-97.764

-97.387

-97.060

-89.570

-87.275

-85.010

-82.771

-80.567

-78.392

-76.255

-74.710

48.938

38.148

30.965

25.842

22.010

19.036

16.666

15.206

1073.8

1100

1200

1300

1400

1500

1600

1700

1791

1791

1800

1900

2000

17.425

17.854

19.506

21.128

22.735

24.336

25.936

27.536

28.992

68.377

68.460

69.384

70.309

40.69

41.10

42.53

43.83

45.02

46.13

47.16

48.13

48.96

70.95

71. CO

71.49

71.97

24.46

24.87

26.27

27.58

28.78

29.91

30.95

31.93

32.77

32.77

32.97

34.97

36.82

-90.330

-90.207

-112.945

-112.271

-111.613

-110.962

-110.313

-109.663

-109.075

-69.690

-69.692

-69.721

-69.751

-74.710

.__-74._354__

-72.469

-69.125

-65.830

-62.591

-59.383

-56.218

-53.376

-53.376

-53.290

-52.358

-51.456

15.206

 ll'-lU

13.198

11.621

10.277

9.119

8.111

7.227

6.513

6.513

6.470

6.023

5.623

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1073.8 DEG K

6.730 KCAL

2.5360 KCAL

BOILING POINT 1791 OEG K 

HEAT OF VAPOR. 39.385 KCAL 

MOLAR VOLUME 0.64567 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SODIUM..... M. P. 370.98, B. P. 1176.9 OEG K.

REFERENCES 148 148 148 COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 173

COTUNNITE GRAM FORMULA HEIGHT 278.096

a 33 B 3333 3333,3 SjSB 33 33 33 33 = 333 = =3.3 =33333 3.333=333333== = = 3333333333333

PbCl 2 : Crystals 298.15° to melting point 768°K. Liquid 768° to 

1000°K.

TEMP. H -H

T 298 

DEC K (KCAL)

-CG -H 1/T 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

768

1.920

3.830

5.890

8.040

9.505

32.50

0.50

38.04

42.30

46.05

49.36

51.35

32.50

0.50

33.24

34.64

36.23

37.87

38.97

 86.200 

0.070

 85.780

 85.388

 84.890

 85T491"

 85.140

75.366

0.170

71.731

68.264

64.885

-59.060

55.244

0.125

39.192 

29.838 

23.634 

'197170 

16.807

768

800

900

1000

15.205

16.060

18.780

21.500

58.77

59.85

63.05

65.91

38.97

39.78

42.18

44.41

79.440

79.081

77.963

76.843

59.060

58.220

55.675

53.257

16.807

15.905

13.520

11.639

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

768 DEC K BOILING POINT DEG K

5.700 KCAL HEAT OF VAPOR. KCAL

4.C490 KCAL MOLAR VOLUME 1.1254 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 600.6, 8. P. 2023 OEG K.

REFERENCES 74 78

159

148

159

COMPILED 

4-15-67
78.077

174 THERMODYNAMIC PROPERTIES OF MINERALS 

FLUORITE GRAM FORMULA WEIGHT

CaF : Crystals I 298.15° to transition point 1424°K. Crystals II 

1424° to melting point 1691°K. Liquid 1691° to 2000°K.

TEMP.

DEG K

298.

H

_ " un 

T 298

<KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

SCO

900

1000

1100

1200

1300

1400

1424

1424

1500

1600

1691

1691

1700

1800

1900

2000

1.755

3.540

5.400

7.320

9.280

11.300

13.380

15.550

17.850

20.230

22.680

23.280

24.420

26.660

29.620

32.350

39.450

39.670

42.050

44.440

46.830

S 

T

(G -H )/T

T 2/38

(CAL/DEG-GFW)

16.46

0.08

21.52

25.50

28.89

31.85

34.47

36.84

39.04

41.10

43.10

45.01

46.82

47.25

48. C5

49.58

51.49

53.15

57.35

57.48

58.84

60.13

61.36

16.46

0.08

17.13

18.42

19.89

21.29

22.87

24.28

25.66

26.96

28.22

29.45

30.62

30.90

30.90

31.81

32.98

34. C2

34.02

34.14

35.48

36.74

37.94

FORMATION

ENTHALPY

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-290.300

0.400

-289.979

-289.686

-289.383

-289.079

-288.820

-288.506

-288.211

-287.893

-2897250

-288.513

-287.710

-287.513

-286.373

-285.381

-284.076

-282.900

-275.800

-275.684

-311.245

-310.279

-309.316

-277.799

0.410

-273.575

-269.512

-265.506

. -261_._550

-257.642

-253.753

-249.915

-246.097

" -242.T78

-238.281

-234.451

-233.542

-233.542

-230.734

-227.146

-223.990

-223.990

-223.667

-219.708

-214.644

-2,09.656

203.631

0.301

149.474

117.803

96.710

_ __8U65_9

70.384

61.620

54.619

48.895

44.106

40.059

36.599

35.843

35.843

33.618

31.027

28.949

28.949

28.754

26.676

24.690

22.910

MELTING POINT

HEAT OF FUSION

H -H

298 0

1691 DEG K

7.100 KCAL

KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

DEG K

KCAL

0.58657 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K,

REFERENCES 74 78 141 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 175

SELLAITE GRAM FORMULA WEIGHT 62.309

MgF : Crystals 298.15° to melting point 1536°K. Liquid 1536° to 

2000°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

OEG K (KCAL)

5 -IG -H )/T 

T T 258 

(CAL/DEG-GFW)

298.15 0.000 

UNCERTAINTY

AGO 

500 

600 

700 

800 

900 

1000

1100

1200

1300

1400

1500

1536

1.645

3.320

5.080

6.890

8.720

10.590

12.510

14.450

16.430

18.440

20.460

22.490

23.220

13.68 

O.C7

18.42 

22.15 

25.36 

28.15 

30.tO 

32.80 

34.82

36.67 

38.39 

40.CO 

41.50 

42.90

43.38

13.68 

O.C7

14.31

15.51

16.89

18.31

19.70

21.03

22.31

23.53

24.70

25.82

26.89

27.91

28.26

 268.700 

0.300

 256.008 

0.310

-297.375 -201.240

187.658

0.227

-268.460 

-268.231 

-267.969 

-267.704 

-267.462 

-267.219

-269.101

-268.833 

-268.530 

-268.203

-298.215 

-297.593

-251.708 

-247.547 

-243.432 

-239.363 

-235.340 

-231.332

-227.185

-223.000 

-218.854 

-214.721

-209.797 

-203.501

137.526 

108.202 

88.670 

74.732 

64.292 

56.175

49.651

44.306 

39.859 

36.098

32.751 

29.650

28.633

1536

1600

1700

1800

1900

2000

37.120

38.560

40.820

43.080

45.340

47.600

52.43

53.34

54.71

56.01

57.23

58.39

28.26

29.24

30.70

32.08

33.37

34.59

-283.475

-282.935

-282.090

-281.249

-280.410

-279.574

-201.240

-197.818

-192. 522

-187.294

-182.095

-176.942

28.633

27.021

24.750

22.741

20.946

19.335

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1536 OEG K

13.900 KCAL

2.3860 KCAL

BOILING POINT 2630 OEG K 

HEAT OF VAPOR. 57.400 KCAL 

MOLAR VOLUME 0.46869 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MAGNESIUM.. M. P. 922, B. P. 1363 DEC K.

REFERENCES 74 78 142

148

COMPILED 

6-13-66
176 THERMODYNAMIC PROPERTIES OF MINERALS

VILLIAUMITE GRAM FORMULA WEIGHT 41.988

: = = = * = = = = = = = ESSSE1* = = = = = 3 = = = === = = = = = = = = = = = = ====== = == = = = == = = = = = = = = = = =

NaF: Crystals 298.15° to melting point 1269°K. Liquid 1269° to 

2000°K.

T CM D 1 t"r 

OEG K

298.15

H

 un 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1269

1269

1300

1400

1500

1600

1700

1800

1900

2000

1.181

2.396

3.661

A. 976

6.341

7.756

9.220

10.733

12.296

13.404

21.324

21.847

23.534

25.220

26.907

28.593

30.280

31.967

33.653

FORMATION FROM THE ELEMENTS

S (G H l/T .-

T T 298 ENTHALPY

(CAL/DEG-GFK)

12.26

0.07

15.66

18.37

20.68

22.70

24.52

26.19

27.73

29.18

30.54

31.43

37.67

38.10

39.35

40.51

41.60

42.62

43.59

44.50

45.36

12.26

O.C7

12.71

13.58

14.58

15.59

16.59

17.57

18.51

19.42

20.29

20.87

20.87

21.29

22.54

23.70

24.78

25.80

26.77

27.68

28.53

FREE ENERGY LOG K

(KCAL/GFW)

-137.027

0.200

-137.594

-137.523

-137.395

-137.212

-136.975

-136.688

-136.356

-135.985

-158.811

-158.356

-150.436

-150.208

-149.472

-148.738

-148.006

-147.275

-146.546

-145.818

-145.093

-129.812

0.210

-127.307

-124.742

-122.200

-119.678

-117.187

-114.733

-112.309

-109.933

-107.125

-.104. 180

-104.180

-103.056

-99.457

-95.905

-92.408

-88.951

-85.553

-82.179

-78.840

95.154

0.154

69.557

54.525

44.511

37.365

32.014

27.861

24.545

21.842

19.510

17.942

17.942

17.325

15.526

13.973

12.622

11.435

10.388

9.453

8.615

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1269 OEG K BOILING POINT DEG K

7.920 KCAL HEAT OF VAPOR. KCAL

2.C280 KCAL MOLAR VOLUME 0.35813 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SODIUM..... M. P. 370.98, B. P. 1176.9 OEG K.

REFERENCES 148 78 23 COMPILED 

5-06-67
PROPERTIES AT HIGH TEMPERATURES 177

CRYOLITE GRAM FORMULA WEIGHT 209.941

X333SSS333333S3SS3S335333XX3SSE

Ma A1F,:Crystals 298.15° to 1500°K. Cryolite dissociates above 

3 6

1279°K presumably by the reaction Na 3AlF = NaAlF4 + 2NaF.

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 5.538 

500 11.454 

600 17.758 

700 24.397 

800 31.338 

900 40.340 

1000 47.237

1100 54.478 

1200 62.065 

1300 69.996 

1400 78.268 

1500 86.881

S -(G -H )/ 

T T 298 

(CAL/DEG-GFW)

56.98 

0.40

72.92 

86.10 

97.59 

107.81 

117.08 

127.74 

135.00

141.90 

148.50 

154.85 

160.97 

166.91

56.98 

0.40

59.08 

63.19 

67.99 

72.96 

77.91 

82.92 

87.76

92.37 

96.78 

101.00 

105.07 

108.99

FORMATION FROM THE ELEMENTS

r 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFM)

-790.000 

2.000

-791.492 

-790.851 

-789.865 

-788.582 

-787.041 

-783.499

-784.665

:2fi2.±242__

-850.625 

-847.652 

-844.351 

-840.721

-750.695 

2.010

-737.283 

-723.663 

-710.313 

-697.154 

-684.196 

-671.602 -"659T557" 

__r64.6..583_.

-632.899 

-614.873 

-597.090 

-579.550

550.273 

1.473

402.832 

316.312 

258.731 

217.661 

186.913 

163.087 ~r??:555

128.464

115.266 

103.369 

93.210 

84.440

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

26.710 KCAL 

9.106 KCAL

BOILING POINT 

HEAT OF VAPOR, 

MOLAR VOLUME

OEG K 

KCAL 

1.6924 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98* B. P. 1176.9 DEG K.

REFERENCES 148 78

148

23

148

COMPILED 

4-15-67
178 THERMODYNAMIC PROPERTIES OF MINERALS

IODARGYRITE GRAM FORMULA WEIGHT 234.774 

Agl: Hexagonal crystals 298.15° to 423°K. Cubic crystals 423° 

to 800°K.

TEMP. H -H

T 298 

DEG K (KCAL)

FORMATION FROM THE ELEMENTS

> -<G -H 

T T 298 

(CAL/DEG-GFW)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298il5 0.000 

UNCERTAINTY

400

423

1.450

1.810

27.60

0.40

31.77

32.64

27.60

0.40

28.14

28.36

-14.780 

0.400

-16.553

-16.730

-15.830 

0.420

-16.137

-16.080

11.604

0.308

8.817

8.308

423

500

600

700

800

3.280

4.320

5.670

7.020

8.370

36.12

38.37

40.84

42.91

44.71

28.36

29.73

31.39

32.88

34.25

-15.260 

r20r6"64"

-19.803

-19.552

-19.313

-16.080 ~-15.~835'

-15.024

-14.234

-13.489

8.308

5.472

4.444

3.685

MELJING POINT 

HEAT OF FUSION

H -H 

298 0

831 DEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.98712 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SILVER..... M. P. 1234 OEG K.

IODINE..... M. P. 386.75, B. P. 458.39 DEG K.

REFERENCES 74 78

158

158 COMPILED 

2-12-67
PROPERTIES AT HIGH TEMPERATURES 179

COCCINITE GRAM FORMULA HEIGHT 454.399

HgI 2 : Crystals I 298.15° -to 403°K. Crystals II 403° to melting 

point 523°K. Liquid 523° to 600°K.

TEMP. H -H

T 298 

DEG K (KCAL)

> -(G -H )/T 

T T 2<58 

(CAL/DEG-GFVi)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFVO

298.15 0.000 

UNCERTAINTY

400

403

1.885

1.940

42.40

1.50

47.84

47.98

42.40

1.50

43.13

43.17

 25.200 

0.400

 29.184

 29.207

-24.148 

0.610

-23.634

-23.570

17.701

0.447

12.913

12.782

403

500

523

2.590

4.550

5.015

49.59

53.95

54.86

43.17

44.65

45.27

^28.557

 38.694

 38.587

-23.570

-21.446

-20.685

12.782

9.374

8.644

523

600

9.515

11.440

63.46

66.90

45.27

47.83

 34.087

 33.350

-20.685

 18.733

8.644

6.824

MELTING POINT 

H£AT OF FUSION

H -H 

298 0

522 DEG K BOILING POINT 627 DEG K

4.500 KCAL HEAT OF VAPOR. 14.141 KCAL

KCAL MOLAR VOLUME 1.7170 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MERCURY.... B. P. 629.73 DEG K.

IODINE..... M. P. 366.75, B. P. 458.39 DEG K.

REFERENCES 74 141

148

COMPILED 

4-10-67
180 

WITHERITE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 197.349

BaCO : Orthorhombic crystals 298.15° to 1079°K. Tetragonal

crystals 1079° to 1241°K. Cubic crystals 1241° to 1600°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

400 2. 

500 4. 

600 7. 

700 10. 

800 12. 

900 16. 

1000 19.

000

300 

730 

330 

080 

980 

020 

190

S -(G -H )/T 

T T 298 

(CAL/DEG-GFK)

26,

0,

33, 

38, 

43, 

47, 

51, 

55, 

58,

.80 

,50

,41 

.83 

.56 

.80 

.67 

.25 

.59

26 

0

27 

29 

31 

33 

35 

37 

39

.80 

.50

.66 

.37 

.34 

.40 

.44 

.45 

.40

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

-297.460 

0.870

-297.152 

-296.815 

-296.438

-296.155 

-295.684 

-295.195 -296.-48T"'

-278 

0

-271 

-265 

-259

-253 

-247 

-241

THE ELEMENTS

ENERGY

.359 

.930

.871 

.591 

.377 72 15" 

.115 

.076

"-23?. 058

LOG

204. 

0.

148. 

116. 

94.

79. 

67. 

58. ""5f.

K

042 

682

543 

090 

478

057 

508 

541 JT2

1079 21.790 61.09 40.90 -295.873 -230.213 46.629

1079 

1100 

1200 

1241

1241

1300 

1400 

1500 

1600

26.280 

27.060 

30.760 

32.270

33.000 

35.240 

39.040 

42.840 

46.640

65.25 

65.97 

69.19 

70.42

71.01 

72.78 

75.59 

78.21 

80.66

40.90 

41.37 

43.56 

44.42

44.42 

45.67 

47.70 

49.65 

51.51

-291.383 

-291.143 

-290.001 

-289.552

-288.822 

-288.105 

-286.907 

-285.728 

-284.563

-230.213 

-229.038 

-223.445 

-221.200

-221.200 

-217.982° 

-212.617 

-207.361 

-202. 162

46.629 

45.505 

40.695 

38.953

38.953 

36.646 

33.191 

30.212 

27.614

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.0948 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

BARIUM..... ALPHA-BETA 643, K. P. BETA 983, B. P. 1895 DEG K.

78 4

98

COMPILED 

1-12-67
PROPERTIES AT HIGH TEMPERATURES 181

ARAGONITE 

*===*===*===

GRAM FORMULA WEIGHT 100.089

CaC03 : Crystals 298.15° to 1000°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

OEG K (KCAL)

> -(G -H )/T 

T T 298 

(CAL/DEG-GFVO

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

2.130

4.440

6.900

9.500

12.220

15.060

18.000

21.18

0.30

27.31

32.45

36.93

40.94

44.57

47.91

51.01

21.18

0.30

21.98

23.57

25.43

27.37

29.29

31.18

33.01

 288.651 

0.340

 288.507

 288.297

 288.073

 287.830 

: 287760l"

 287.299

 287.005

 269.678 

0.350

 263.214

 256.913

 250.658

 244.442 

: 23§7264"

 232.109

 225.992

197.679

0.257

143.813

112.296

91.302

_76.318

657690

56.364

49.390

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.81620 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, B. P. 1756 OEG K.

REFERENCES' 74 78 43

100

COMPILED 

8- 9-66
182 THERMODYNAMIC PROPERTIES OF MINERALS

CALCITE GRAM FORMULA WEIGHT 100.089 

CaCO3 : Crystals 298.15° to 1400°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

DEG K (KCAL)

AGO 

500 

600 

700 

800 

900 

1000

1100

1200

1300

1400

2.220

4.610

7.200

9.890

12.660

15.500

18.430

21.450

24.550

27.619

30.790

J -<G -H 

T T 298 

(CAL/DEG-GFV.)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

22

0

.15

.20

2 2.

0.

15

20

-268. 

0.

592 

320

-269. 

0.

908 

330

197. 

0.

847 

242

28.53

33.86

38.58

42.72

46.42

49.76

52.85

55.73

58.42

60.87

63.22

22.98

24.64

26.58

28.59

30.59

32.54

34.42

36.23

37.96

39.63

41.23

-288.358 

-?88.068 

-287.714 

-287.381

-287.102 

-286.800 

-286.516

-286.238

-287.706 

-287.211 

-266.632

-263.553 

-257.389 

-251.289 

-245.239

-239.245 

-233.275 

-227.343

-221.449

-215.426 

-209.411 

-203.456

143.998 

112.505 

91.532 

76.567

65.358 

56.647 

49.686

43.998

39.234 

35.205 

31.761

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.88274 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, l». P. BETA 1123, B. P. 1756 DEG K.

REFERENCES 74 78 43

100

COMPILED 

8- 9-66
PROPERTIES AT HIGH TEMPERATURES 183

DOLOMITE GRAM FORMULA WEIGHT 184.411

CaMg(C03 ) : Crystals 298.15° to 1000°K.

T c V D U U

1 r r n n

T 298

DEC K (KCAL)

29R.15 0.000

UNCERTAINTY

400 4.150

500 8.743

6CO 13.752

700 19.121

300 24.797

900 30.709

1000 36.760

S -(

T

p it i / T (j - H ) / 1

T 298

(CAL/OEG-GFW)

37.09

0.07

49. Cl

59.24

68.37

76.63

84.21

91.17

97.53

37.09

O.C7

38.63

41.75

45.45

49.31

53.21

57. C5

60.77

FORMATION FROM THE ELEMENTS

ENTHALPY FRPE ENERGY LOG K

(KCAL/GFW)

-557.613 -518.734 380.241

0.520 0.530 0.388

-557.406 -505.468 276.174

-556.968 -492.535 215.286

-556.371 -479.704 174.732

-555.645 -466.972 145.795

-554.838 -454.372 124.128

-553.923 -441.860 107.298

-555.182 -429.266 93.816

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K 

KCAL 

6.210 KCAL

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 1.53776 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, B. P. 1756 DEG K. 

MAGNESIUM.. M. P. 922, B. P. 1363 OEG K.

REFERENCES 144 144 COMPILED 

4-29-67
184 THERMODYNAMIC PROPERTIES OF MINERALS

MAGNESITE

MgCO : Crystals 298.15° to 1100°K.

GRAM FORMULA WEIGHT 84.321

T C M O

I rnr »

OEG K

29R.

H

_ un

T 298

(KCAL)

15 0. 000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

2.

4.

6.

9.

12.

15.

18.

21.

028

301

786

449

269

217

243

308

S

T

/ * IJ o n

T

FORMATION 

\ i f i / 

298 ENTHALPY

(CAL/DEG-GFK)

15

0

21

26

31

35

38

42

45

48

.70

.20

.52

.58

.11

.21

.97

.44

.63

.55

15'0

16

17

19

21

23

25

27

29

.70

.20

.45

.98

.80

.71

.63

.53

.39

.18

-266.

0.

-266.

-265.

-265.

-265.

-264.

-264.

-265.

-265.

FROM

FREE

THE ELEMENTS

ENERGY LOG K

(KCAL/GFW)

081

320

010

791

483

106

664

175

812

309

-246

0

-239

-232

-226

-219

-212

-206

-200

-193

. 112

.330

.293

.637

.034

.485

.999

.564

.020

.458

180.405

0.242

130.743

101.685

82.332

68.526

58.188

50.160

43.714

38.436

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.66965 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS 

MAGNESIUM.. M. P. 922 f B. P. 1363 DEG K.

REFERENCES 74 78 133

99

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 185 

RHODOCHROSITE GRAM FORMULA WEIGHT 114.947

MnCO : Crystals 298.15° to 700°K.

TEMP. H -H

T 298 

DEC K (KCAL)

> -<G -H 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS 

 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

2.160

4.550

7.095

9.800

23.90

0.50

30.12

35.44

40.07

44.24

23.90

0.50

24.72

26.34

28.24

30.24

212.521

0.290

212.387

212.107

211.878

211.470

195.045

0.330

189.094

183.298

177.631

171.883

142.971

0.242

103.316

80.119

64.702

53.664

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT DEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.74266 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, BETA-GAMMA 1360, GAMMA-DELTA 1410, 

M. P. DELTA 1517 DEG K.

REFERENCES 74 122 133 COMPILED 

12-20-66
186 THERMODYNAMIC PROPERTIES OF MINERALS

STRONTIANITE

**==*===»====

GRAM FORMULA WEIGHT 147.629

SrCO : Orthorhombic crystals 298.15° to 1197°K. Hexagonal 

crystals 1197° to 1500°K.

TCMD 1 Cnr.

OEG K

298.15

H

_IJ ~ n 

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1197

1197

1200

1300

1400

1500

2.270

4.620

7.100

9.700

12.420

15.250

18.170

21.160

24.110

28.810

28.920

32.380

35.840

39.300

FORMATION FROM THE ELEMENTS

T T 298 ENTHALPY

(CAL/DEG-GFW)

23.20

0.40

29.72

34.96

39.48

43.49

47.12

50.45

53.52

56.37

58.94

62.87

62.96

65.73

68.29

70.68

23.20

0.40

24. C4

25.72

27.65

29.63

31.59

33.51

35.35

37.13

38.80

38.80

38.86

40.82

42.69

44.48

FREE ENERGY LOG K

(KCAL/GFM)

-294.581

0.650

-294.307

-294.052

-293.793

-293.535

-293.251

-2957159

-292.895

-294.917

-294.432

-289.732

-289.705

-288.819

-287.951

-287.102

-275.450

0.670

-268.950

-262.638

-256.378

-250. 168

 

-243.994 -2577S4-3"-

-231.702

-225.475

-219.364

-219.364

-219.189

-213.353

-207.571

-201.865

201.910

0.491

146.947

114.799

93.385

78.106

66.656

57775*6

50.638

44.798

40.052

40.052

39.920

35.868

32.403

29.412

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.93236 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

STRONTIUM.. ALPHA-GAMMA 862, M. P. GAMMA 1043, B. P. 1648 DEG K,

REFERENCES 74 78 4

98

COMPILED 

1-12-67
PROPERTIES AT HIGH TEMPERATURES 187

NITROBARITE GRAM FORMULA WEIGHT 261.350 

Ba(NC> ) : Crystals 298.15° to melting point 865°K.

TEMP. H -H

T 298 

DEG K (KCAU

5 -(G -H )/T 

T T 2<38 

(CAL/DEG-GFVO

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

3.960

8.410

13.240

18.460

24.070

51.14

0.20

62.53

72.44

81.24

89.28

96.76

51.14

0.20

52.63

55.62

59.17

62.91

66.67

 237.060 

0.500

 236.638

 235.762

 234.621 

: 233l338~

 231.638

 190.066 

0. 590

 174.063 

158.513 

143.166 

I2875l4~ 

113.080

139.322

0.432

95.103 

69.286 

52.148 

'"397968 

30.892

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

865 DEC, K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MCLAR VOLUME 1.9259 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

BARIUM..... ALPHA-BETA 643, M. P. BETA 983, B. P. 1895 DEG K.

REFERENCES 74 78 141 COMPILED 

2-12-67
188 THERMODYNAMIC PROPERTIES OF MINERALS 

NITER GRAM FORMULA WEIGHT 101.107

KNO 3 : Orthorhombic crystals 298.15° to 401°K. Rhombohedral

crystals 401° to melting point 610°K. Liquid 610° to 700°K.

TEMP. H -H S -<G -H )/T

T 298 T T 298

DEC K (KCAL) (CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 2.490

2.520

31.81

0.15

38.98 

39.C5

31.81

0.15

32.75

32.76

-117.760 

0.300

 118.038

 118.030

-93.893 

0.310

-85.675

-85.600

68.826

0.227

46.810

46.654

401

500

600

610

3.920

6.780

9.660

9.970

42.54

48.92

54.17

54.68

32.76 

35.36 

38.C7 

38/36

 116.630

 115.939

 115.273

 115.210

-85.600

-78.011

-70.486

-69.730

46.654

34.098

25.675

24.983

610

700

12.770

15.013

59.26

62.64

38.36

41.19

 112.797

 112.167

-69.730

-63.421

24.983

19.801

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

61C DEG K 

2.413 KCAL 

KCAL

ROILING POINT OEG K

HEAT CF VAPOR. KCAL

MOLAR VOLUME 1.1481 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

POTASSIUM.. M. P. 336.4 t B. P. 1043.7 OEG K.

REFERENCES 74 78 141 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 189 

AMMONIA-NITER

NH NO,: Ammonia-niter undergoes phase changes at 305.3°, 357.4°, 

398.4°K. It melts at 442.8°K.

GRAM FORMULA WEIGHT 80.043

TEMPi H -H

T 298 

OEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE" ENERGY LOG K 

(KCAL/GFW)

293.15 0.000 

UNCERTAINTY

400

500

4.900

10.360

36.11

0.05

49.94

62.20

36/11 

0.05

37.69

41.48

-87.373 

0.200

-85.683

-83.420

-43.971 

0.210

-29.284

-15.486

32.232

0.154

16.000

6.769

MELTING POINT 

HFAT OF FUSION

H -H 

298 0

442.8 OEG K BOILING POINT OEG K

1.300 KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.1111 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

REFERENCES 74 158 158 COMPILED 

6-13-66
190 THERMODYNAMIC PROPERTIES OF MINERALS

SODANITER GRAM FORMULA WEIGHT 84.995 

NaNO : a crystals 298.15° to 549.2°K. 0 crystals 549.2° to

579.2°K. Liquid 579.2° to 700°K.

TEMP. H -H 

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

FORMATION

S

_ 1C _LJ \ 1 T

FROM THE ELEMENTS

T T 298 EMTHALPY FRFE ENERGY LOG K 

(CAL/DEG-GFfc) (KCAL/GFW)

27.85 27.85 -111.540 

0.10 O.JO 0.300

-87.459 64.109 

0.310 0.227

400 

500 

549.2

549.2 

579.2

579i2 

600 

700

2.495 

5.575 

7.260

8.070 

9.140

12.832 

13.598 

17.298

35. Cl 

41.86 

45.07

46.55 

48.44

54.81 

56. C8 

61.78

28.77 

30.71 

31.86

31.86 

32.66

32.66 

33.42 

37.07

-111.842 

-110.951 

-111.830

-111.020 

-109.132

-105.440 

-.105.137 

-103.674

-79.221 

-71. 158 

-67. 000

-67.000 

-64.920

-64.920 

-63.500 

-56.675

43.284 

31.103 

26.624

26.624 

24.496

24.496 

23.130 

17.695

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

579.2 OEG K BOILING POINT OEG K

3.692 KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.89866 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SODIUM..... M. P. 370.98, B. P. 1176.9 OEG K.

REFERENCES 74 78 141 COMPILED 

6-13-66
PROPERTIES AT HIGH TEMPERATURES 191

BAfUTE GRAK FORMULA WEIGHT 233.402 

BaSO : Crystals 298.15° to 1300°K.

TEMP. 

DEC K

H -H 

T 298 

(KCAL)

298.15 0.000

UNCERTAINTY

400 2.700 

500 5.700 

600 8.800 

700 12.000 

BOO 15.200 

900 18.400 

1000 21.600

1100 24.900 

1200 28.300 

1300 31.800

S -«G -H )/ 

T T 298 

(CAL/OEG-GFW)

31.60 

0.20

39.37 

46.06 

51.71 

56.63 

60.91 

64.67 

68.05

71.19 

74.15 

76.95

31.60 

0.20

32.62 

34.66 

37. C4 

39.49 

41.91 

44.23 

46.45

48.55 

50.57 

52.49

FCRMATIDN FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-352.131 

2.030

-352.644 

-352.723 

-352.701

-352T73-?"

-365.726 

-365.435

-367.040

-366.611 

-366.101 

-365.510

-325. 300 

2.000

-316. 108 

-306.965 

-297.812 --2887644 

-280.719 

-270. 104

-259.498

-248.756 

-238.068 

-227.420

238.451 

1.466

172.713 

134.174 

108.478

- 9-g:rr5

76.689 

65.590

56.713

49.423 

43.358 

38.233

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K

KCAL

KCAL

BOILING POINT DEC K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.2452 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

BARIUM..... ALPHA-BETA 643, K. P. BETA 983, B. P. 1895 DEC K. 

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 OEG K.

REFERENCES 74 78 73

135

COMPILED 

4-10-67
192 THERMODYNAMIC PROPERTIES OF MINERALS

ANHYDRITE GRAK FORMULA WEIGHT 136.142

CaS04

Crystals 298.15° to 1400°K.

TEMP. H -H

T 298 

OEG K (KCAL>

> -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

11

,600

,200

,050

,250

14.850

18.800

22.850

27.000

31.300

35.800

40.500

25.50

0.40

32.99

38.78

43.97

48.90

53.70

58.35

62.61

66.57

70.31

73.91

77.39

25.50

0.40

26.49

28.38

30.55

32.83

35.14

37.46

39.76

42.02

44.23

46.37

48.46

 343.321 

1.010

 316.475 

1.000

231.982

0.733

-343.928 

 344.414 

 344.655 

 344.576

 357.232 

-356.178 

-355.123

-354.054

-354.654 

-353.053 

-351.268

-307.268 

-298.046 

-298.746 

-279.431

-271.369 

-260.694 

-250.131

-239.697

-229.213 

-218.811 

-208.560

167.883 

130.275 

105.175 

87.242

74.134 

63.305 

54.666

47.623

41.745 

36.785 

32.558

MELTING POINT 1723 OEG K 

HEAT OF FUSION 6.700 KCAL

H -H KCAL 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.0979 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737 t I*. P. BETA 1123, B. P. 1756 OEG K. 

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 74 78 135

29

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 193

ARCAN

======

V°4

TEMP. 

DFG K

ITE

: Orthorl 

crystal 

to 1701

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 3.410 

500 7.150 

6CO 11.120 

700 15.390 

800 20.100 

856 22.*780

B56 

900 

10CO

1100 

1200 

1300 

1342

1342

1400 

1500 

1600 

1700

24.920 

26.920 

31.600

36.320 

41.220 

46.260 

48.410

57.470 

60.240 

65.020 

69.800 

74.580

icrnbic crystals (o) 

Ls (0) 856° to melt: D°K.

S -<G -H )/ 

T T 298 

(CAL/DEG-GFW)

42.00 

0.40

51.82 

60.15 

67.38 

73.95 

80.24 

83.48

85.98 

88.25 

93.18

97.77 

102.04 

106. C6 

107.70

114.45 

116.46 

119.77 

122.85 

125.74

42. CO 

0.40

43.29 

45.85 

48.85 

51.96 

55.11 

56.87

56.87 

58.34 

61.58

64.75 

67.69 

70.48 

71.63

71.63 

73.43 

76.42 

79.22 

81.87

GRAM FOR

298.15° to 8 

inq point 134

FORMATION

MULA WEIGHT 174.266

= = = =s== = = = = = = = = = = = = =

56°K. Hexagonal 

2°K. Liquid 1342°

FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-343.481 

0.620

-345.282 

-345.429 

-345.277 

-344.795

-356.930 

-356.250

-354.110 

-353.600 

-352.457

-389.132 

-387.366 

-385.479 

-384.660

-375.600 

-374.668 

-373.072 

-371.488 

-369.917

-315.290 

0.600

-305.402 

-295.408 

-285.410 

-275.461

-266. 840 

-260.540

-260.540 

-255.757 

-244.945

-232.304 

-218.130 

-204.086 

-198.260

-198.260 

-190.593 

-177.520 

-164.525 

-151.627

231.113 

0.440

166.863 

129.122 

103.960 

86.003

72.897 

66.520

66.520 

62.106 

53.533

46.154 

39.727 

34.310 

32.287

32.287 

29.753 

25.865 

22.473 

19.493

MELTING POINT 1342 OEG K 

HEAT OF FUSION 9.C60 KCAL

H -H KCAL 

298 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.5654 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

POTASSIUM.. M. P. 336.4, B. P. 1043.7 DEG K. 

SULFUR..... ORTHO-PCNO 368.54, M. P. MONO 388.36, 

B. P. 717.75 OEG K.

REFERENCES 74 78 73

135

COMPILED 

2-12-67
194 THERMODYNAMIC PROPERTIES OF MINERALS 

ALUNITE GRAM FORMULA WEIGHT 828.440

K 2 A1 6 (OH) 12 (S0 4 ) 4 : Crystals 298.15° to 700°K.

TEMP. H -H

T 298

-H 

T 298

FORMATION FROM THE ELEMENTS 

 

ENTHALPY FREE ENERGY LOG K

298.15 0.000 

UNCERTAINTY

400 22.050

500 47.500

600 74.100

700 101.100

156.80

0.90

156.80

0.90

219.99 164.86

276.70 181.70

325.19 201.69

366.64 222.21

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 7.0172 CAL/BAR

ALUMINUM... M. P. 933 DEG K.

POTASSIUM.. M. P. 336.4, B. P. 1043.7 OEG K. 

SULFUR..... ORTHO-MONO 368.54, M. P. MONO 388.36, 

B. P. 717.75 DEG K.

REFERENCES 74 78 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 195

MASCAGNITE GRAM FORMULA WEIGHT 132.139

(NH 4 ) 2 S0 4 : Crystals 298.15° to 600°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H S -<G -H )/T 

T 298 T T 298 ENTHALPY FREE ENERGY LOG K 

DEC K (KCAL) (CAL/DEG-GFM (KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 

5CO 

600

4.970

10.340

16.590

52.60

0.30

66.92

78.88

90.25

52.60

0.30

54.49

58.20

62.60

-282.230 

0.300

-215.565 

0.320

158.013

0.235

 283.355 -192.676 105.273

 283.885 -169.937 74.279

 283.513 -147.166 53.605

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K

KCAL

KCAL

BOILING POINT DEC K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.7848 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-KOMO 36R.54, M. P. MONO 388.36, 

8. P. 717.75 DEG K.

REFERENCES 74 78

158

158 COMPILED 

6-13-66
196 THERMODYNAMIC PROPERTIES OF MINERALS

THENAROITE

Na 2 S0 4 :

" r. F* r n

GRAM FORMULA WEIGHT 142. 041

Orthorhombic crystals (V) 298.15° to 450°K. Orthorhombic 

crystals (III) 450° to 514°K. Hexaqonal crystals (I) 

514° to 1157°K. Liquid 1157° to 1800°K.

* n

T 298

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

450

450

5CO

514

514

600

700

800

900

1000

1100

1157

1157

1200

1300

1400

1500

16CO

1700

18CO

MELTING 

HFAT OF 

H -H

298 0

3.520

5.370

6.110

8.130

8.720

10.400

13.820

18.000

22.340

26.860

31.590

36.570

39.470

45.140

47.170

51.880

56.600

61.320

66.040

70.760

75.470

POINT 

FUSION

TRANSITIONS IN

SdDIUK

SULFUR

S 

T

l b n 

T

FORMATION FROM THE ELEMENTS

298 ENTHALPY

(CAL/DEG-GFfc)

35

0

45

50

51

56

57

60

66

73

78

«4

89

93

96

101

103

106

110

113

116

119

122

.73

.C7

.86

.22

.86

.12

.28

.55

.70

.14

.93

.25

.23

.98

.55

.45

.17

.94

.44

.70

.74

.60

.29

1157 

5.670

REFERENCE

M. P. '70.

35

0

37

38

38

39

40

40

43

47

51

54

57

60

62

62

63

67

70

72

75

77

80

OEG 

KCAL 

KCAL

.73

.C7

.C6

.29

.29

.86

.32

.32

.67

.43

.CO

.41

.64

.73

.44

.44

.86

.03

.01

.82

.46

.98

. 36

K

_

. FREE ENERGY LOG K

(KCAL/GFW)

331.528

0.410

-333.277

-

-

-

-

-

-

-

-

-

-

_

-

-

-

-

-

-

_

-

333.280

332.540

332.550

332.500

330.820

330.668

330.256

342.72?

341.653

340.398

338.931

338.000

332.330

378.351

376.794

375.243

373.707

372.183

370.668

369.180

-303.

0.

-293.

-288.

-288.

-283.

-282.

-282.

-274.

-265.

-256.

-246.

-235.

-225.

-219.

-219.

-214.

-200.,

-187.

-174.

-160.

-147.

-134.

BOILING POINT 

HEAT OF VAPOR. 

MOLAR VOLUME 1.

400

400

674

760

760

844

440

440

401

055

993

337

808

430

480

480

467

872

402

045

772

601

519

2746

222.

0.

160.

140.

140.

124.

120.

120.

99.

82. T'O.

59.

51.

44.

41.

41.

39.

33.

29.

25.

21.

18.

16.

398

293

456

241

241

068

092

092

950

754

207

819

536

789

458

458

060

769

255

358

960

975

333

DEG K 

KCAL 

CAL/BAR

STATE ELEMENTS

98, B

36P.

. P

54,

. 1176

M. P.

.9 DEG K ....

MONO 388.36,

B. P. 717.75 OEG K.

REFERENCES 74 73

135

COMPILED 

4-15-67
ANGLESITE

PROPERTIES AT HIGH TEMPERATURES 197

GRAM. FORMULA WEIGHT 303.252

PbS04 : Crystals 298.15° to 1100°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 2.580 

500 5.300 

600 8.220 

700 11.360 

800 14.870 

900 18.700 

1000 22.800 

1100 27.050

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

35. 

0.

42. 

49. 

54. 

59. 

63. 

68. 

72. 

76.

51

07

95 

01 

33 

16 

84 

35 

67 

72

35 

0

36 

38 

40 

42 

45 

47 

49 

52

.51

.07

.50 

.41 

.63 

.93 

.25 

.57 

.87 

.13

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

-219. 

0.

-220. 

-220. 

-221.

-222.

-234. 

-233. 

-232. 

-230.

891 

260

523 

869

008 097 

732 

680 

381 

951

-194 

0

-185 

-176

-168

-158

-151 

-140 

-130 

-120

THE ELEMENTS

ENERGY LOG

.360 

.250

.603 

.831 

.009

.982

.205 

.824 

.579 

.477

142. 

0.

101. 

77. 

61.

49.

 4i:

34. 

28. 

23.

K

469 

183

408 

293 

197

636

307 

197 

538 

936

MELTING POINT 

HEAT OF FUSION 

H -H

DEG K 

KCAL 

4.7950 KCAL

BOILING POINT 

HEAT OF VAPOR,

MCLAR VOLUME

DEG K 

KCAL 

1.1460 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

LEAD....... M. P. 6C0.6, B. P. 2023 CEG R.

SULFUR..... CRTHO-PCNO 368.54, M. P. MONO 388.36,

B. P. 717.75 DEG K.

REFERENCES 74 41 159 COMPILED 

2-12-67
198 THERMODYNAMIC PROPERTIES OF MINERALS

ZINKOSITE GRAM FORMULA WEIGHT 161.432

ZnSO 4 : Crystals 298.15° to 1000°K.

FORMATION FRCM THE ELEMENTS

TEMP. H -H S -(G -H )/T

T 298 T T 298

OEG K (KCAL) (CAL/DEG-GFK)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

2.520

5.120

7.870

10.920

14.220

17.770

21.620

26.40

0.30

33.66

39.45

44.46

49.16

53.56

57.74

61.79

26.40

0.30

27.36

29.21

31.34

33.56

35.78

38.00

40.17

-233.600 

0.200

-207.022 

0.230

151.751

0.169

234.267 -197.903 108.129

234.708 -188.750 82.502

234.994 -179.535 65.395

Y$l~.'11ti~ -17<572TI_" 33TISI

2497631" ~-l62lOOO ~44l256

248.897 -151.082 36.688

247.892 -140.260 30.654

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.99355 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SULFUR..... ORTHO-fONO 368.54,'M. P. MONO 388.36,

B. P. 717.75 OEG K. 

ZINC....... M. P. 692.7, B. P. 1184 OEG K.

REFERENCES 74 170 3

135

COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 199 

WHITLOCKITE GRAM FORMULA WEIGHT 310.183

b===*==3S===a======================================================

Ca 3 (P04 ) 2 : Rhombohedral crystals 298.15° to 1373°K. Monoclinic 

crystals 1373° to 1600°K.

T C u D

1 t r r 

DEC K

298.

H

 LJn 

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1373

1373

1400

1500

1600

6.000

12.300

19.100

26.400

34.050

42.050

50.600

59.600

69.000

78.800

86.200

89.900

92.000

99.900

107.800

FORMATION FROM THE ELEMENTS

\ \y n I / I

T T 298 ENTHALPY

(CAL/OEG-GFVi)

57.58

0.20

74.85

88.89

101.28

112.52

122.73

132.14

141.15

149.72

157.90

165.74

171. 2fl

173.97

175.48

180.93

186.03

57.58

0.20

59.85

64.29

69.45

74.81

80.17

85.42

90.55

95.54

100.40

105.12

108.50

108.50

109.77

114.33

118.65

FREE ENERGY LOG K

(KCAL/GFW)

-986.200

0.500

-986.130

-985.951

-985.548

-984.921

-1C25.134

-1023.752

-1022.088

-1020.206

-1023.364

-1020.100

-1017.520

-1013.820

-1013.466

-1012.162

-1010.884

-932.785

0.520

-914.532

-896.660

-878.842

-861.098

-854.036

-832. 768

-811.632

-790.689

-769.511

-748.452

-733.320

-733.320

-727.782

-707.377

-687. 140

683.748

. 0.381

499.676

391.929

320.117

268.846

233.325

202.223

177.382

157.095

140.147

125.826

116.728

116.728

113.612

103.064

93.859

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.3331 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737 t M. P. BETA H23t B. P. 1756 DEC K. 

PHOSPHORUS. SUBLIMES 704 DEC K.

REFERENCES 74 78 141 COMPILED 

4-10-67
200 THERMODYNAMIC PROPERTIES OF MINERALS

HYDROXYLAPATITE GRAM FORMULA WEIGHT 502.322

Ca 5 (PO4 ) 3OII: Crystals 298.15° to 1500°K.

T C M O 1-1 _ U

T 298 

06G K (KCAL)

298.15 0.000 

UNCERTAINTY

FORMATION FROM THE ELEMENTS

S

_ f P II t /T _ __ m _____ ____ _ _

T T 298 ENTHALPY FRcE ENERGY LOG K 

(CAL/DEG-GFW) (KCAL/GFW)

93.30 93.30 -3215.000 -3123.504 2289.584 

0.40 0.40 3.000 3.010 2.206

10.170

21.345

33.000

45.005

57.355

70.045

83.065

96.390

110.025

123.945

138.140

152.590

121.20

147.30

168.60

187.00

203.60

218.40

232.20

249.40

256.80

267.90

278.40

288.40

95.77

104.61

113.60

122.71

131.91

140.57

149.13

161.77

165.11

172.56

179.73

186.67

 3214.765

 3213.829

 3212.860

 3211..987 

: 3272.66T

 3271.016

 3269.547

 3091.707

 3061.658

 3031.356

 3001.100 

: 29877065~

 2951..322

 2915.950

1689.226

1338.246

1104.167

_936.983

8167026

716.677

637.279

 3268.162 

: 32757535"

 3272.589

 3269.422

 3266.055

 2885.641 :2844.~893~"

 2809.019

 2773.512

 2738.179

573.322 

"5187124 

472.238 

432.963 

398.951

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

15.355 KCAL MOLAR VOLUME 3.8145 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K. 

PHOSPHORUS. SUBLIMES 704 OEG K.

REFERENCES 74 78 97 COMPILED 

11-29-66
PROPERTIES AT HIGH TEMPERATURES 201

FLUORAPATITE GRAM FORMULA WEIGHT 504.313

:============================

Ca 5 (P0 4 ) 3 F: Crystals 298.15° to 1600°K.

TEMP. H -H

T 298 

DEC K (KCAL)

5 -IG -H )/T 

T T 298 

(CAL/DEG-GFW)

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400 

500 

600 

7CO 

SCO 

9CO 

1000

1100

1200

1300

1400

1500

1600

10.050 

20.850 

32.030 

43.245 

55.395 

67.B25 

79.855

92.860

105.570

118.655

131.905

145.065

157.500

92.70

0.40

121.45 

150.15 

165.65 

183.35 

199.80 

214.05 

227.CO

239.20

200.20

260.65

270.35

279.40

287.50

92.70

0.40

96.22

108.45

112.27

121.57

130.56

138.69

147.14

154.78 

112.22 

169.38 

176.13 

182.69 

189.C6

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K 

KCAL 

15.170 KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 3.7657 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K. 

PHOSPHORUS. SUBLIMES 704 OEG K.

REFERENCES 74 78 COMPILED 

6-13-66
202 THERMODYNAMIC PROPERTIES OF MINERALS

KYANITE GRAM FORMULA WEIGHT 162.046

Al 2 Si05 : Crystals 298.15° 'to 1800°K.

FORMATION FROM THE ELEMENTS

TEMP. H -H

T 298 

OEG K (KCAL)

> -<G -H 

T T 298 

(CAL/DEG-GFH)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

3.320

7.080

11.170

15.460

19.900

24.450

29.090

33.810

38.620

43.510

48.480

53.530

58.660

63.870

69.160

20.02

0.08

29.55

37.93

45.38

51.99

57.91

63.27

66.16

72.66

76.84

80.76

84.44

87.92

91.23

94.39

97.41

20.02

0.08

21.25 

23.77 

26.76 

29.90 

33.03 

36.10 

39.C7

41.92

44.66

47.29

49.81

52.23

54.57

56.82

58.99

-619.930 

0.540

-584.000 

0.550

428.082

0.403

-620.156

-620.031

-619.719

-619.335

-618.930

-618.559

-623.282

-622.817

-622.291

-621.711

-621.077

-620.387

-619.637

-630.896

-629.955

-571.894

-559.569

-547.506

-535.500

-523.547

-511.648

-499.414

-487.053

-474.731

-462.467

-450.233

-438.062

-425.934

-413.751

-400.994

312.467

244.587

199.428

167.190

143.026

124.245

109.147

96.768

86.460

77.748

70.284

63.825

58.180

53.191

48.687

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

3.8340 KCAL MOLAR VOLUME 1.0537 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K. 

SILICON.... M. P. 1685 DEG K.

REFERENCES 121 78 59

60

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMP ERATURES 203

ANDALUSITE GRAM FORMULA WEIGHT 162.046

Al2 Si05 : Crystals 298.15° to 1800°K.

TEMP. H -H

T 298 

DEG K (KCAL)

5 -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

3.340

7.120

11.170

15.420

19.810

24.320

28.920

33.600

38.350

43.170

48.060

53.020

58.040

63.120

68.260

22.28

0.10

31.87

40.29

47.67

54.22

60.08

65.39

70.23

74.69

78.82

82.68

86.31

89.73

92.97

96.05

98.89

22.28

0.10

23.52 

26.05 

29.C5 

32.19 

35.32 

38.37 

41.31

44.'14 

46.86 

49.47 

51.98 

54.38

56.69

58.92

60.97

 619.390 

0.710

 584.134 

0.720

428.180

0.528

-619.596

-619.451

-619.179

-618.83-5

-618.480

-618.149

-622.912

-622.487

-622.021

-621.511

-620.957

-620.357

r-61S_.717

-631.106

-630.315

-572.262

-560. 169

-548.340

-536.561

-524.833

-513.146 ---5017114--

-488.956

-476.837

-464.763

-452.731

-440.747

-428.798

-416.783

-404.018

312.668

244.849

199.732

167.521

143.377

124.609

1Q9T51B

97.146

86.844

78.134

70.674

64.217

58.571

53.581

49.054

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K 

KCAL 

4.C860 KC4L

DEG K 

KCAL 

1.2316 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 121 78 164

60

COMPILED 

4-29-67
204 THERMODYNAMIC PROPERTIES OF MINERALS

SILLIMANITE GRAM FORMULA WEIGHT 162.046

Al Si05 : Crystals 298.15° to 1800°K.

TFMP. H -H 

T 298 

OEG K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1 800

3.350

7.090

11.100

15.300

19.630

24.080

28.640

33.310

38.080

42.950

47.910

52.960

58.090

63.300

68.590

S -(G -H )/ 

T T 298 

(CAL/DEG-GFW)

22.97

0.10

32.59

40.92

48.23

54.70

60.48

65.72

7"0.52

74.97

79.12

83. C2

86.70

90.18

93.49

96.65

99.67

22.97

0.10

24.21

26.74

?9.73

32.84

35.94

38.96

41.88

44.69

47.39

49.98

52.48

54.87

57.18

59.41

61.56

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-618.650

0.710

-618.846

-618.741

-618.509

-618.215

-617.920

-617.649

-622.452

-622.037

-621.551

-620.991

-620.367

-619.677

-618.927'

-630.186

-629.245

-583.599

0.720

-571.800

-559.774

-548.006

-536.277

-524.593

-512.943

-500.944

-488.814

-476.727

-464.685

-452.687

-440. 742

-428. 840

-416.883

-404.352

427.739

0.528

312.416

244.676

199.610

167.433

143.312

124.559

109.481

97.118

96.824

78.120

70.667

64.216

58.577

53.594

49.095

H -H 

298 0

OEG K 

KCAL 

4.1620 KCAL

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MCLAR VOLUME 1.1926 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 121 78 164

60

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 205

MULLITE (3-2) GRAM FORMULA WEIGHT 426.053 

3Al 2 0 3 '2Si02 : Crystals 298.15° to melting point 2123°K.

TEMP. 

DEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

6CO

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

8.930

IB.fllO

29.420

40.580

52.170

64.090

76.260

88.630

101.170

113.850

126.640

139.520

152.460

165.440

178.450

191.480

204.520

S -(G -H )/ 

T T 2S8 

(CAL/DEG-GFW)

64.43

l.CO

90.07

112.08

131.41

148.61

164.08

178.11

190.93

202.72

213.63

223.78

233.26

242.15

250.50

258.37

265.80

272.84

279.53

64.43

l.CO

67.74

74.46

82.38

90.64

98.87

106.90

114.67

122.15

129.32

136.20

142.80

149. 14

155.21

161. C5

166.66

172. C6

177.27

FORMATION FROM THE ELEMENTS

T 

ENTHALPY . FREE ENERGY LOG K 

(KCAL/GFW)

-1629.543

1.700

-1630.011

-1629.760

-1629.156

-1628.345

-1627.456

-1626.639

-1641.102

-1640.018

-1638.836

-1637.578

-1636.274

-1634.938

-1633.592

-1656.391

-1654.928

-1653.489

-1652.073

-1539.006

1.730

-1508.618

-1477.475

-1447.077

-1416.795

-1386.638

-1356.578

-1325.492

-1293.989

-1262.590

-1231.290

-1200.080

-1169.005

-1137.991

-1106.852

-1074. 546

-1C42.335

-1010.232

1128.118

1.268

824.268

645.802

527.096

442.342

378.811

329.421

289.685

257.091

229.948

206.998

187.340

170.323

155.442

142.295

130.467

119.895

110.393

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2133 OEG K

KCAL

KCAL

BCILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 3.2158 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 124 60

124

164

60

COMPILED 

4-29-67
206 THERMODYNAMIC PROPERTIES OF MINERALS

LARNITE GRAM FORMULA WEIGHT

Ca 2 SiO4 : Crystals 298.15° to 970°K. a' crystals (bredigite) 970' 

to 1710°K. a crystals 1710° to 2000°K.

TEMP. 

DEC K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 3.335 

500 6.940 

600 10.790 

700 14.810 

800 18.940 

900 23.140 

970 26.120

970 

1000

1100 

1120 

1200 

1300 

1400 

1500

1600 

1700 

1710

1710 

1800 

1900 

2000

26.560 

27.860

32.250 

33.140 

36.720 

41.290 

45.970 

50.780

55.710 

60.780 

61.290

64.680 

69.090 

73.990 

78.890

S -(G -H )/T 

T T 298 

(CAL/DEG-GFM

30.50 

0.20

40.09 

48.13 

55.14 

61.34 

66.85 

71.79 

74.98

75 '.44 

76.76

80.94 

81.74 

84.83 

88.49 

91.95 

95.27

98.45 

101.53 

101.83

103.81 

106.32 

108.97 

111.48

30.50 

0.20

31.75 

34.25 

37.16 

40.18 

43.17 

46.08 

48.06

48.06 

48.90

51.62 

52.15 

54.23 

56.73 

59. 11 

61.42

63.63 

65.78 

65.99

65.99 

67.94 

70.03 

72.03

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-551.420 

0.770

-551.349 

-551.122 

-550.804 

-550.461

-550.203 

-549.911 

-549.760

-549.320 

-549.275

-549.122

-549.091

-552.514 

-551.790 

-550.976 

-550.052

-549.026

-559.946 

-548.030

-544.640

-628.062 

-626.562 

-625.072

-524.022 

0.780

-514.663 

-505.523 

-496.432 

-487.399

-478. 4T4 

-469.447 

-463. 185

-463. 185 

-460.527

-451.666

-449.900

-442.? 44 

-433.394 

-424.326 

-415.298

-406.373

-397.395 

-396.495

-396.495

-386. 189 

-372.794 

-359.504

LOG K

384.118 

0.572

281.198 

220.963 

180.825 

152.173

T36T696 

113.997 

104.358

104.358 

100.648

89.738

87.790

 "80:?98 

72.860 

66.240 

60.509

55.508

51.089 

50.675

50.675

46.890 

42.881 

39.285

MELTING POINT 2403

HEAT OF FUSION

H -H

298 0

OEG K

KCAL

KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME 1.2332

DEG K

KCAL

CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, B. P. 1756 OEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 78 81 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 207

CALCIUM OLIVINE GRAM FORMULA WEIGHT 172.244

Ca 2 Si04 : Crystals 298.15° to 1120°K. Calcium olivine is the 

stable form of dicalcium silicate below 1120°K.

T CM D U _ U 1 t K n n 

T 298

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1120

3.270

6.760

10.480

14.380

18.420

22.590

26.890

31.320

32.220

FORMATION 

S_ i r .u t /T __________

T T 298 ENTHALPY

(CAL/DEG-GFW)

28.80

0.20

38.21

45.99

52.76

58.77

64.17

69.08

73.61

77.83

78.64

?8.80

0.20

30.03

32.47

35.29

38.23

41.14

43.98

46.72

49.36

49.87

FROM THE ELEMENTS

FREE ENERGY LOG K

(KCAL/GFW)

-553.973

0.940

-553.967

-553.855

-553.667

-553.444

-553.276

-553.014

-552.798

-552.605

-552.567

-526.069

0.950

-516.529

-507. 186

-497.867

-488.583

-479.343

-470.111

-460.900

-451.728

-449.900

385.618

0.696

282.217

221.690

181.347

152 ..542

130.950

114.158

100.729

89.750

87.790

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.4127 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 81

129

COMPILED 

4-29-67
208 THERMODYNAMIC PROPERTIES OF MINERALS 

GEHLENITE GRAM FORMULA WEIGHT 274.205

Ca 2 Al Si07 : Crystals 298.15° to melting point 1863°K.

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

S

i r LJ \ i '

T T 298 

(CAL/DEG-GFW)

47.40 47.40 

0.40 0.40

FORMATION FRCM THE ELEMENTS

r 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-952.740 -904.432 662.965 

0.960 0.970 0.711

1100 

1200 

13CO 

1400 

1500

1600

1700

1800

5.430

11.340

17.630

24.170

30.910

37.800

44.820

51.950

59.180

66.500

73.900

81.370

88.900

96.480

104.100

63.01

76.18

87.64

97.72

106.72

114.83

122.23

129.02

135.31

141.17

146.65

151.80

156.66

161.26

165.61

49.43 

53.50 

58.26 

63.19 

68.C8 

72.83 

77.41

81.79 

85.99 

90.C2 

93.86 

97.55

101.10

104.51

107.78

-952.880

-952.706

-952.399

-952.073

-9~51.836 

r 95K599

-956.569"

 888.105

 871.662

 855.484

 839.357

 823.283

 807.219 

: 7967807"

485.236 

381.002 

311.609 

262.058 

224.910 

196.019 

"1727830

-956.453

-959.875 

-959.202 

-958.482 

-957.723

-774.244

-757.414 

-740.552 

-723,775 

-707.016

153.828

137.944 

124.498 

112.986 

103.012

r 9 56.. 930

-968.181"

-1039.837

 690.356

 6737620"

 654.462"

94.298

"86.. 599

79.462

MELTING POINT 1863 DEC K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.1567 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

CALCIUM.... ALPHA-BETA 737, f. P. BETA 1123, B. P. 1756 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 122 172 COMPILED 

5-08-67
PROPERTIES AT HIGH TEMPERATURES 209

GRCSSULAR GRAM FORMULA WEIGHT 450.454

Ca Al Si 3 0 .: Crystals 298.15° to 1700°K.

TF.MP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 9.017 

500 18.707 

600 29.183 

700 40.060 

800 51.298 

900 62.815 

1000 74.534

1100 86.414 

1200 98.417 

1300 110.565 

1400 122.884 

1500 135.340 

16CO 147.930 

1700 160.650

S -(G -H )/ 

T T 2<38 

(CAL/DEG-GFfc)

57.70 

1.30

83.63 

105.22 

124.32 

141.06 

156.07 

169.61 

180.67

193.28 

203.75 

213.46 

222.58 

231.20 

239.29 

 247.01

57.70 

1.30

61. C9 

67.80 

75.68 

83.84 

91.95 

99.81 

106.14

114.73 

121.74 

128.41 

134.81 

140.97 

146.84 

152.51

FORMATION FROM THE ELEMENTS

T 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-1588.393 

1.830

-1588.438 

-1588.089 

-1587.352 

-1586.581

-1585.888 

-1585.129

-1589.628 

-1589.097

-1593.918 

-1592.604 

-1591.181 

-1589.681 

-1588.101

-1622.649

-1500.986 

1.880

-1471. 314 

-1441.796 

-1412.622 

-1383.545

-1354.607 

-1325.708

-1295.240 

-1267.261

-1237.652 

-1207.973 

-1178.455 

-1149.056 

-1119.733

-1090.195

1100.249 

1.378

803.886 

630.207 

514.546 

431.961

370.060 

. 3.2U225.

283.074 

251.781

225.407 

203.078 

183.965 

167.417 

152.948

140.154

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.9947 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 OEG K.

CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, 8. P. 1756 OEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 163 57 57 COMPILED 

4-29-67
210 THERMODYNAMIC PROPERTIES OF MINERALS 

MERWINITE GRAM FORMULA WEIGHT 328.719

Ca.Mg(SiO4 )-: Crystals 298.15° to incongruent melting point 1848°K.

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 6.590 

500 13.690 

600 21.170 

700 28.940 

800 36.930 

900 45.080 

1000 53.350

1100 61.730 

1200 70.230 

1300 78.870 

1400 87.670 

1500 96.650 

1600 105.830 

1700 115.230

S -<G -H )/ 

T T 298 

(CAL/DEG-GFK)

60.50 

0.50

79.45 

95.28 

108.91 

120.88 

131.55 

141.15 

149.86

157.85 

165.24 

172.16 

178.68 

184.87 

190.79 

196.49

60.50 

0.50

62.97 

67.90 

73.63 

79.54 

85.39 

91. C6 

96.51

101.73 

106.72 

111.49 

116.06 

120.44 

124.65 

128.71

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-1091.490 

1.270

-1091.399 

-1091.009 

-1090.534 

-1090.047

-1089.688 

-1089.275

-1091.190 

-1091.104

-1096.348 

-1095.440 -1124.75-f 

-1123.306 

-1121.691

-1144.028

-1037.184 

1.290

-1018.626 

-1000.486 

-982.426 

-964.442

-946.542 

-928.663

-910.634 

-892.596

-874.151 

-855.645

-836.438 

-815.868 

-795.462

-774.916

760.274 

0.946

556.550 

437.311 

357.847 

301.111

258.583 

225.509

199.018 

177.342

159.204 

143.847

130.574 

118.871 

108.655

99.622

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.4952 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BFTA 1123, B. P. 1756 OEG K.

MAGNESIUM.. M. P. 922, B. P. 1363 DEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 122 172 117

75

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 211

AKERMANITE GRAM FORMULA WEIGHT 272.640 

Ca 2 MgSi 207 : Crystals 298.15° to melting point 1727°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 5.560 

500 11.420 

600 17.670 

700 24.200 

800 30.900 

900 37.740 

1000 44.720

1100 51.830 

1200 59.070 

1300 66.430 

1400 73.910 

1500 81.500 

1600 89.200 

1700 97.010

S -(G -H )/ 

T T 298 

(CAL/DEG-GFM

50.03 

0.50

66.02 

79. C8 

90.47 

100.53 

109.48 

117.53 

124.88

131.66 

137.96 

143.85 

149.39 

154.63 

159.60 

164.33

50. C3 

0.50

52.12 

56.24 

61. C2 

65.96 

70.85 

75.60 

80.16

84.54 

88.73 

92.75 

96.60 

100.30 

103.85 

107.27

FCRMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-926.510 

1.070

-926.437 

-926.236 

-925.889 

-925.488

-925.185 

-924.845

-926.736 

-926.541 -929785T~" 

-929.064

-958.529 

-957.293 

-955.979

-978.725

-879.353 

1.090

-863.241 

-847.467 

-831.746 

-816.084

-800.493 

-784.911

-769.182 

-"737746T" -753.444

-721.436

-704.684 

-686. 596. 

-668.626

-650.439

644.581 

0.799

471.652 

370.427 

302.962 

254.792

218.684 

190.602

168.104 

149.695

134.310 

121.284

110.006 

100*037 

91.330

83.626

MELTING POINT 1727 OEG K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

ROILING POINT OEG K

HEAT CF VAPOR. KCAL

MOLAR VOLUME 2.2182 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-RETA 737, P. P. BETA 1123, R. P. 1756 OEG K.

MAGNESIUM.. M. P. 922, R. P. 1363 DEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 122 172 116

75

COMPILED 

4-29-67
212

SPHENE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 196.063

CaTiSiO : Crystals 298.15° to melting point 1670°K. Liquid 1670" 

to 2000°K.

TEMP. H -H S -<G -H )/T

', T 298 T T 298

DEC K (KCAU (CAL/DEG-GFW)

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

3.750

7.690

11.860

16.230

20.750

25.380

30.070

34.800

39.580

44.430

49.350

54.340

30.88

0.20

41.66 

50.44 

58.C4 

64.77 

70.81 

76.26 

81.20

85.71

89.87

93.75

97.39

100.84

30.68

0.20

32.28 

35. C6 

38.27 

41.58 

44.87 

48.06 

51.13

54.07

56.89

59.57

62.14

64.61

 622.050 

0.570

 588.246 

0.580

431.195

0.425

621.903 

621.664 

621.344 

 620.964

 620.593 

 620.186 

 619.854

619.606

622.128 

621.535 

 620.920 

620.284

-576.708 

-565.437 

-554.225 

-543.059

-531.967 

-520.907 

-509.885

-498.906 -48~7.T73" 

-476. 589 

-465.468 

-454.399

315.098 

247.152 

201.876 

169.550

145.326 

126.493 

111.435

99.123 ~~~88".8~35 

80.122 

72.663 

66.206

1600 

1670

1670

1700

1800 

1900

2000

59.400 

62.980

92.570

94.570

101.250 

107.930

114.610

104.10 

106.29

124.01

125.20

129.02 

132.63

136. C6

66.97 

68.58

68.58

69.57

72.77 

75.82

78.75

-619.623 

-619.140

-589.550

-600.966

-634.985 

-632.523

-633.790

-443.360 

-435. 134

-435.134 ~~-43T.~798~~"

-422.059 

-410.295

-398.581

60.560 

56.945

56.945

~ 5"5".6~40~

51.245 

47.195

43.555

MELTING POINT 167C.OO DEC K 

HFAT OF FUSION 29.590 KCAL

H -H KCAL 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.33007 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, I*. P. BETA 1123, B. P. 1756 OEG K.

SILICON.... M. P. 1685 OEG K.

TITANIUM... ALPHA-BETA 1155, M. P. 1943 DEG K.

REFERENCES 74 152 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 213

FAYALITE GRAM FORMULA WEIGHT 203.778

Fe 2 Si04 : Crystals 298.15° to melting point 1490°K. Liquid 1490' 

to 2000°K.

TEMP.

DEG K

298.

H

_ LJn 

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

11CO

1200

1300

14CO

1490

1490

1500

1600

1700

1800

1900

2000

3.440

7.210

11.190

15.320

19.560

23.890

23.310

32.850

37.510

42.290

47.190

51.690

73.720

74.300

80.050

85.800

91.550

97.300

103.050

FORMATION FROM THE ELEMENTS

\ \r n ift 

T T 298 ENTHALPY

(CAL/OEG-GFW)

35.45

0.40

45.35

53.75

61.00

67.36

73.02

78.12

82.78

87.10

91.16

94.98

98.62

100.98

115.76

116.90

120.61

124.10

127.39

130.49

133.44

35.45

0.40

36.75

39.33

42.35

45.47

48.57

51.58

54.47

57.24

59.90

62.45

64.91

66.29

66.29

67.37

70.58

73.63

76.53

79.28

81.91

FREE ENERGY LOG K

(KCAL/GFH)

-353.544

0.700

-353.338

-352.926

-352.488

-352.085

-351.787

-351.665

-351.849

-352.386

-352.408

-351.634

-350.800

-349.985

-327.955

-327.796

-326.210

-337.310

-335.928

-341.938

-340.698

-329.668

0.720

-321.540

-313.627

-305.808

-298.067

-290.374

-282.694

-275.021

-267.294

-259.586

-251.893

-244.268

-236.310

-236.310

-236.827

"-2247^0 -230.821

-218.201 " -~2ii7 T2 8 "

-204.490

241.652

0.528

175.681

137.086

111.390

93.061

79.326

68.647

60.106

53.106

47727?

42.347

38.132

34.661

34.661

34.506

31.529

28.3W

26.493

2*7358

22.346

MELTING POINT 149C DEC K 

HEAT OF FUSION 22.030 KCAL

H -H KCAL 

298 0

BOILING POINT DEC K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.1087 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

IRON....... CURIE P. 1033, ALPHA-GAMMA 1184, GAMMA-DELTA 1665,

M. P. DELTA 1809 DEG K. 

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 151

78

82 COMPILED 

5-06-67
214 THERMODYNAMIC PROPERTIES OF MINERALS

FORST6RITE GRAM FORMULA WEIGHT 140.708 

Mg_Si04 : Crystals 298.15° to melting point 2163°K.

TEMP. H -H

T 298 

OEG K (KCAL)

J -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

FORMATION FRCM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

3.100

6.520

10.180

14.010

17.960

22.000

26.130

30.340

34.630

39.000

43.450

47.950

52.470

57.000

61.540

66.090

70.650

22.75

0.20

31.66

39.38

45.95

51.85

57.12

61.88

66.23

70.24

73.97

77.47

80.77

83.87

86.79

89.55

92.14

94.60

96.94

22.75

0.20

23.91

26.24

28.98

31.84

34.67

37.44

40.10

42.66

45.11

47.47

49.73

51.90

54.CO 

56.C2 

57.95 

59.82 

61.61

-520.370 

0.520

-491.938 

0.530

360.599

0.388

-520.476 

-520.342 

-520.096 

-519.801 

-519.497 

-519.207

-523.195

-522.862 

-522.474 

-522.030

-582.216 

-581.116

-580.014

-590.988 

-589.830 

-588.674 

-587.518

-482.202 

-472.698 

-463.126 

-453.652 

-444.228 

-434.828

-425.117

-415.308 

-405.568 

-395.834

-384.491 

-370.411

-356.411

-342.387 

-327.786 

-313.261 

-298.806

263.462 

206.616 

168.693 

141.636 

121.357 

105.590

92.909

82.514 

73.864 

66.546

60.022 

53.969

48.683

44.017 

39.799 

36.033 

32.652

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

2163 OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

4.129 KCAL MOLAR VOLUME 1.0466 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MAGNESIUM.. M. P. 922, B. P. 1363 OEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 78 153 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 215

CGROIERITE GRAM FORMULA WEIGHT 584.969

Ma 2 Al 3 (AlSi 5 018 ): Crystals 298.15° to 1700 8 K.

TEMP. 

OEG K

H -H 

T 298 

tKCAL)

298.15 0. 

UNCERTAINTY

000

S -(G -H )/T 

T T 298 

(CAL/OEG-GFW)

97

0

.33

.90

97 

0

.33

.90

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

 -

THE ELEMENTS

ENERGY

~

LOG K

 

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

12.030

25.440

39.950

55.220

71.020

87.210

103.720

120.520

137.600

154.960

172.590

190.490

208.660

227.090

131.89

161.77

188.20

211.73

232.82

251.88

269.28

285.29

300.15

314.04

327.11

339.45

351.18

362.35

101.81

110.89

121.62

132.84

144.05

154.98

165.56

175.73

185.48

194.84

203.83

212.46

220.77

228.77

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 5.5740 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

MAGNESIUM.. M. P. 922, 8. P. 1363 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 122 172 COMPILED 

8- 9-66
216 THERMODYNAMIC PROPERTIES OF MINERALS

FEPHROITE GRAM FORMULA WEIGHT 201.960

Mn 2 SiO4 : Crystals 298.15° to melting point 1620°K. Liquid 1620° 

to 1800°K.

TPMD 1 r n r 

DEG K

298.15

H _I4 "H

T 298

(KCAL)

0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1620

1620

1700

1800

3.340

6.940

10.750

14.720

18.800

22.950

27.140

31.370

35.640

39.960

44.330

48.750

53.230

54.130

75.550

80.200

86.010

FORMATION FROM THE ELEMENTS

\ \j n i / i

T T 298 ENTHALPY

(CAL/DEG-GFVO

39.00

1.00

48.61

56.63

63.57

69.69

75.14

80.03

84.44

88.47

92.19

95.64

98.88

101.93

104.82

105.38

118.61

121.41

124.73

39. CO

l.CO

40.26

42.75

45.65

48.66

51.64

54.53

57.30

59.95

62.49

64.90

67.22

69.43

71,55

71.97

71.97

74.23

76.95

FREE ENERGY LOG K

(KCAL/GFW)

-413.520

0.760

-413.524

-413.322

-413.204

-412.791

-412.553

-412.361

-413.285

-413.182

-413.064

-412.950

-413.976

-415.082

-422.226

-422.253

-400.823

-411.966

-410.744

-390.028

0.820

-381.998

-374.133

-366.458

-358. 556

-350.836

-343.129

-335.437

-327.639

-319.894

-312.117

-304.336

-296.468

-287.973

-286.480

-286.480

-280.559

-272.857

285.898

0.601

208.713

163.533

133.482

111.946

95.844

83.323

73.309

65.096

58.260

52.471

47.509

43.195

39.335

38.648

38.648

36.068

33.129

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1620 OEG K BOILING POINT OEG K

21.430 KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.1618 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990, RETA-GAMMA 1360, GAMMA-DELTA 1410,

M. P. DELTA 1517 DEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 104 78 71 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 217

ZIRCON GRAM FORMULA WEIGHT 183.304

ZrSiO : Tetragonal crystals 298.15° to 2000°K. Note zircon 

decomposes to ZrO, and SiC>2 at approximately 1949°K.

TEMP. 

DEC K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

SCO

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2.620

5.460

8.550

11.800

15.180

18.640

22.140

25.670

29.220

32.790

36.380

39.990

43.630

47.290

50.980

54.690

58.420

S

T 

(CALX

20. C8

0.30

27.61

33.94

39.56

44.58

49.09

53.16

56.85

60.21

63.30

66.16

68.82

71.31

73.66

75.88

77.99

79.99

81.90

FORMATION FROM THE ELEMENTS

T 298 ENTHALPY FREE ENERGY LOG K 

OEG-GFW) (KCAL/GFW)

20.08 

0.30

21.06

23.02

25.31

27.73

30.12 

32.45 -

34.71

36.88 

38.95 

40.94 

42.84

44.65 

46.39 

48. C7 

49.67 

51.21 

52.69 

MELTING POINT

HEAT OF FUSION

H -H

298 0

DEG K

KCAL

3.562 KCAL

BOILING POINT

HEAT OF VAPOR.

MOLAR VOLUME

DEG K

KCAL

0.93834 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

SILICON.... M. P. 1685 OEG K.

ZIRCONIUM.. ALPHA-BETA 1143.2, M. P. BETA 2128.2 OEG K.

78

148

COMPILED 

4-15-67
218 THERMODYNAMIC PROPERTIES OF MINERALS

WOLLASTONITE GRAM FORMULA WEIGHT 116.164

CaSi03 : Crystals 298.15°-to 1400°K. Pseudowollastonite is the 

stable phase above 1398°K.

4CO 

500 

6CO 

700 

800 

900 

1000

2.300

4.780

7,390

10.140

13.000

15.890

18.810

FORMATION FROM THE ELEMENTS

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

i - Ib -n 1 / 

T T 298 

ICAL/DEG-GFW)

19

0

.60 

.20

19. 

0.

60 

20

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-390. 

0.

640 

870

-370. 

0.

263

880

271. 

0.

410 

645

26.21

31.74

36.49

40.72

44.54

47.94

51.02

20.46

22.18

24.17

26.23

28.29

30.28

32.21

 390.592

 390.439

 390.259

 390.032 

: 38978l5"

 389.591

 389.441

 363.302

 356.499

 349.726

 342.983 

: 3367282~

 329.599

 322.935

198.499

155.825

127.387

"~9ll868 107.084

80.037

70.577

1100

1200 

1300

21.770

24.800 

27.880

53.84

56.48 

58.94

34. C5

35.81 

37.49

-389.339

-590798T~ 

-390.584

-316.294 " -3ff9.-??9"- 

-302.743

62.842

 56T3T3 

50.896

1400 31.000 61.25 39.11 -390.158 -296.008 46.209

MATING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 0.95435 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, H. P. BETA 1123, B. P. 1756 OEG K. 

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 152

16

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 219

PSEUOOWOLLASTONITE GRAM FORMULA WE IGHT 116.164 

CaSi03 : Crystals 298.15° to melting point 1817°K.

TEMP. 

DEC K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 2.290 

500 4.710 

600 7.330 

700 10.040 

800 12.840 

9CO 15.710 

10CO 18.630

1100 21.590 

1200 24.580 

1300 27.610 

1400 30.690 

1500 33.810 

1600 36.970 

17CO 40.170

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

20.90 

0.20

27.49 

32.88 

37.66 

41.83 

45.57 

48.94 

52.02

54.84 

57.45 

59.87 

62.15 

64.31 

66.34 

68.28

20.90 

0.20

21.76 

23.46 

25.44 

27.49 

29.52 

31.48 

33.39

35.21 

36.97 

38.63 

40.23 

41.77 

43.23 

44.65

FCRMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY 

(KCAL/GFW)

-389.070 

0.620

-389.032 

-388.939 

-388.749 

-38-8.562 -jw.-«ff~

-388.201 

-388.051

-387.949 -3~ff9T6Tr~~ 

-389.284 

-388.898 

-388.489 

-388.054

-399.663

-369.081 

0.630

-362.254 

-355.569 

-348.918 

-342.290

""-335". 696 

-329. 109 

-322.545

-316.004 "-3-0-9 .-3-4-3 

-302.652 

-296.008 

-289.396 

-282.805

-276. 136

LOG K

270.543 

0.462

197.926 

155.419 

127.093 

106.867

91.708 

79.918 

70.492

62.784

56.339 

50.880 

46.209 

42*165 

38*629

3 5 £500

MELTING POINT 1817 OEG K 

HEAT OF FUSION 6.550 KCAL

H -H KCAL 

298 0

BOILING POINT OEG K 

HEAT OF VAPOR. KCAL 

MCLAR VOLUME 0.95794 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, M. P. BETA 1123, B. P. 1756 DEG K. 

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 75 COMPILED 

4-29-67
220 THERMO DYNAMIC PROPERTIES OF MINERALS

CALCIUM-ALUMINUM PYROXENE GRAM FORMULA WEIGHT 218.125

CaAl.SiCK: Crystals 298.15° to 1700°K.

i D

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 4.437 

500 9.287 

600 14.523 

700 19.980 

800 25.618 

900 31.395 

1000 37.274

1100 43.234 

1200 49.257 

13CO 55.345 

1400 61.504 

1500 67.720 

1600 73.990 

1700 80.310

S -(G -H »/l 

T T 298 

(CAL/DEG-GFW)

34.60 

0.80

47.35 

58.16 

67.70 

76.10 

83.63 

90.43 

96.19

102.30 

107.55 

112.42 

116.98 

121.28 

125.31 

129.15

34.60 

0.80

36.26 

39.58 

43.50 

47.5/> 

51.61 

55.54 

58.92

63. CO 

66.50 

69.85 

73. C5 

76.13 

79.07 

81.90

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-786.984 

0.660

-787.105 

-766.941 

-786.585 

-786.188

-785.458

-790.256 

-789.930

-791.375 

-790.766 

-790.115 

-789.434 

-788.723

-800.053

-745.130 

0.710

-731.016 

-716.739 

-702.737 

-688.787

-661.052

-646.440 

-632.554

-618.137 

-603.710 

-589.351 

-575.045 

-560.774

-546.445

546.194 

0.520

399.408 

313.286 

255.971 

_215.048

160.525

141.279 

125.677

112.578 

101.493 

92.002 

83.784 

76.598

70.250

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.5176 CAL/BAR

ALUMINUM... M. P. 933 DEG K.

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K,

SILICON.... M. P. 1685 OEG K.

REFERENCES 163 57 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 221

OIOPSIDE GRAM. FORMULA WEIGHT 216.560 

CaMg(SiO ) 2 : Crystals 298.15° to melting point 1664°K

TEMP. 

OEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 4.320 

500 8.940 

600 14.060 

700 19.540 

800 25.420 

900 31.340 

1000 37.280

1100 43.250 

1200 49.250 

1300 55.300 

1400 61.440 

1500 67.660 

1600 73.980

S -(G -H )/ 

T T 298 

(CAL/DEG-GFV.)

34.20 

0.20

46.61 

56.90 

66.24 

74.66 

82.52 

89.48 

95.74

101.43 

106.65 

111.49 

116. C4 

120.34 

124.41

34.20 

0.20

35.81 

39.02 

42.81 

46.75 

50.74 

54.66 

58.46

 62.11 

65.61 

68.95 

72.15 

75.23 

78.17

FORMATION FROM THE ELEMENTS

T 

ENTHALPY FREE ENERGY LOG K 

.(KCAL/GFW)

-767.390 

2.180

-767.545 

-767.534 

-767.214 

-766.709

-765.992 

-765.335

-766.953 

-766.518

-767.894 

-767. ?39

-796.872 

-795.830 

-794.718

-725.784 

2.190

-711.533 

-697.528 

-683.562 

-669.642

-655.841 

-642.093

-628.241 

-614.389

-600.454 

-586.512

-571.815 

-555.799 

-539.840

532.012 

1.605

388.763 

304.888 

248.987 

209.071

179.167 

155.921

137.302 

122.068

109.357 

98.601

89.264 

80.980 

73.738

MELTING POINT 1664 DEG K 

HEAT OF FUSION 18.500 KCAL

H -H KCAL 

298 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.5795 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, P. P. BETA 1123, B. P. 1756 DEG K.

PAGNESIUM.. M. P. 922, 8. P. 1363 OEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 95

116

COMPILED 

4-29-67
222 THERMODYNAMIC PROPERTIES OF MINERALS

CLINOENSTATITE GRAP FORMULA WEIGHT 100.396 

MgSiO : Crystals 298.15° to melting point 1830°K.

TEMP. H -H S -<G -H )/T

T 298 T T 2<38

DEC K (KCAL) (CAL/DEG-GFW)

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFH)

298.15 0.000 

UNCERTAINTY

400

500

600

700

800

900

1000

1100 

1200 

1300 

14CO 

1500

1600

1700

1800

2.140

4.480

6.980

9.600

12.300

15.090

17.970

20.910

23.890

26.890

29.910

32.940

35.970

39.010

42.060

16.. 2 2

0.10

22.38

27.59

32.14

36.17

39.77

43.06

46.09

48.89 

51.49 

'53.88 

56.12 

58.22

60.17

62.01

63.75

16.22*

0.10

17.03

18.63

20.51

22.46

24.39

26.29

28.12

29.88

31.58

33.20

34.76

36.26

37.69 

39.C6 

40.38

-370.140 

0.440

-349.394 

0.450

256.112

0.330

-370.223 

-370.164 

-370.035 

-369.867 

-369.692 

-369.494

-371.401

-371.139 

-370.857 

-370.574

-400.633 

-400.071

-399.523

-411.049 

-410.440

-342.293 

-335.314 

-328.350 

-321.411 

-314.500 

-307.612

-300.565

-293.485 

-286.459 

-279.418

-271.589 

-262.418

-253.255

-244.020 

-234.205

187.020 

146.565 

119.601 

100.349 

85.917 

74.698

65.688

58.310 

52.171 

46.974

42.397 

38.234

34.593

31.371 

28.436

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

1830 DEG K BOILING POINT DEC K

14.700 KCAL HEAT OF VAPOR. KCAL

2.895 KCAL MOLAR VOLUME 0.75215 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MAGNESIUM.. M. P. 922, B. P. 1363 DEG K.

SILICON.... M. P. 1685 DEC K.

REFERENCES 74 78 153 COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 223

RHODONITE GRAM FORMULA WEIGHT 131.022 

MnSi03 : Crystals 298.15° to melting point 1564°K.

FORMATION FROM THF ELEMENTS

TEMP. H -H S -«G -H )/T

T 298 T T 258

DEC K 1KCAL) < CAL/DEG-GFVi)

ENTHALPY FREE ENERGY 

(KCAL/GFW)

LOG K

298.15 0.000 

UNCERTAINTY

AGO 

500 

600 

700 

800 

900 

1000

1100

1200

1300

1400

1500

2.300

4.800

7.430

10.200

13.070

15.970

18.890

21.850

24.870

27.950

31.090

34.300

24.50

0.50

31.12

36.69

41.48

45.75

49.58

52.99

56.07

58.90

61.52

63.98

66.31

68.53

?4.50 

0.50

25.37 

27.C9 

29. 10 

31.18 

33.24 

35.25 

37.18

39. C4 

40.80 

42.48 

44.10 

45.66

 315.620 

0.470

 297.390 

0.500

217.992

0.367

-315.612 

-315.449 

-315.329 

-315.022 

-314.775 

-314.571

-314.936

-314.779 

-314.582 

-314.359

-314.678

-314.999

-291. 162 

-285.064 

-279.074 

-272.985 

-266.999 

-261.032

-255.090

-249. 115 

-243. 156 

-237.204

-231.266

-225.311

159.083 

124.601 

101.652 

85.229 

72.941 

63.387

55.750

49.494 

44.285 

39.877

36.102

32.828

MELTING POINT 1564 OEG K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT DEC K 

HEAT OF VAPOR. KCAL 

MOLAR VOLUME 0.84034 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MANGANESE.. ALPHA-BETA 990t EETA-GAMMA 1360 t GAMMA-OELTA 1410,

M. P. CELTA 1517 DEG K. 

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 132 82 COMPILED 

4-29-67
224 THERMODYNAMIC PROPERTIES OF MINERALS

JADEITE GRAM FORMULA WEIGHT 20?.140

NaAKSiO ) : Crystals 298.15° to 1200°K.

TEMP.

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 4.250 

500 8.970 

600 14.040 

700 19.360 

SCO 24.860 

900 30.490 

1000 36.240 

1100 42.120 

1200 48.160

S -(G -H )/' 

T T 298 

(CAL/DEG-GFM

31.90 

0.30

44.10 

54.62 

63.86 

72. C5 

79.39 

86. C? 

92.08 

97.68 

102.94

31.90 

0.30

33.47 

36.68 

40.46 

44.39 

43.31 

52.14 

55.84 

59.39 

62.81

FCRMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-719.871 

1.000

-720.791 

-720.728 

-720.447 

-720.034 

-719.552 

-719.056

-721.070 

-720.440

-742.935

-677.206 

1.010

-662.633 

-647.958 

-633.433 

-618.959 

-604.551 

-590.205

-575.720 

-561.213

-546.323

496.404 

0.740

362.045 

283.221 

230.727 

193.247 

165.155 

143.321

125.823 

111.502

99.499

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 1.4435 CAL/BAR

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98, B. P. 1176.9 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 165

96

COMPILED 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 225

TREMOLITE GRAM FORMULA WEIGHT 812.409

Ca 2 Mg 5 Sig022 (OH) 2 : Crystals 298.15° to 1100°K.

T c u o I trr .

DEG K

298.

H _

T 298

(KCAL)

15 0 9 000

UNCERTAINTY

400

5CO

600

7CO

800

900

1000

1100

17

36

57

78

101

124

148

172

*

.

.

.

.

375

516

054

638

089

309

241

847

S

T

If* LJ \ b M

T

)/T

298

(CAL/OEG-GFVi)

131

0

181

223

261

294

324

351

376

400

.19

.30

.14

.75

.13

.44

.43

.74

.93

.35

131

0

137

150

166

IS2

198

213

228

243

.19

.30

.70

.72

.04

.10

.07

.62

.69

.22

FORMATION

ENTHALPY

FROM

FREE

THE ELEMENTS

ENERGY LOG K

(KCAL/GFW)

-2952.935

4.140

-2953.488

-2952.751

-2951.329

-2949.511

-2947.470

-2945.105

-2953.240

-2950.360

-2779

4

-2719

. 137

.150

.647

-2661.239

-2603

-2545

-2487

-2430

-2372

-2314

.034

. 161

.580

.170

. 150

.120

2037.157

3.042

1485.942

1163.223

948.152

794.633

679.573

590.124

518.432

459.772

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEC K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

23.338 KCAL MOLAR VOLUME 6.5229 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

CALCIUM.... ALPHA-BETA 737, K. P. BETA 1123, B. P. 1756 DEG K.

MAGNESIUM.. M. P. 922, B. P. 1363 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 132 137 169 COMPILED 

4-29-67
226 

ANORTHITE

THERMODYNAMIC PROPERTIES OF MINERALS

GRAM FORMULA WEIGHT 278.210

CaAl Si_00 : Crystals 298.15° to melting point 1825°K.

TEMP. 

OEG K

298.

H -H 

T 298 

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

5.570

11.750

18.450

25.410

32.570

39.910

47.430

55.130

62.970

70.930

79.050

87.450

96.170

105.230

S -<G -H )/ 

T T 298 

(CAL/DEG-GFVi)

48.45

0.30

64.47

78.23

90.44

101.16

110.72

119.35

127.28

134.62

141.44

147.80

153.82

159.62

165.24

170.73

48. AS

0.30

50.54

54.73

59.69

64.86

70. Cl

75.01

79.65

84.50

88.96

93.24

97.36

101.32

105.13

108.83

FORMATION

T

FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFH)

-1009.300

1.150

-1009.528

-1009.311

-1008.818

-1008.287

-1007.800

-1007.310

-1011.924

-1011.336

-1012.458

-1011.486

-1010.396

-1009.066

-1007.452

-1029.670

-955.626

1.160

-937.460

-919. 188

-901.214

-883.317

-865.506

-847.733

-829.650

-811.459

-793.184

-774.930

-756.783

-738.733

-720.770

-702.699

700.491

0.850

512.203

401.776

328.266

275.783

236.444

205.857

181.319

161.222

144.458

130.277

118.139

107.633

98._45_2

90.338

MELTING POINT 1825 OEG K 

HEAT OF FUSION KCAL

H -H KCAL 

298 0

BOILING POINT DEC K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.4089 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

CALCIUM.... ALPHA-BETA 737 t K. P. BETA 1123 t B. P. 1756 OEG K,

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 78 6

72

COMPILED. 

4-29-67
PROPERTIES AT HIGH TEMPERATURES 227 

MICROCLINE . GRAM FORMULA WEIGHT 278.337

KAlSi 0 : Crystals 298.15° to 1400°K. 

38

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

5.500

11.550

17.950

24.800

32.000

39.400

46.900

54.500

62.200

70.000

77.900

S -«G -H )/ 

T T 258 

(CAL/DEG-GFH)

52.47

0.80

68.28

81.76

93.42

103.97

113.58

122.29

130.19

137.44

144.14

150.37

156.23

52. 47

o.eo

54.53

58.66

63.50

68.54

73.58

78.51

83.29

87.89

92.31

96.52

100.59

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-946.265

0.930

-947.146

-947.032

-946.753

-946.189

-945.428

-944.618

-946.370

-964.439

-963.325

-962.164

-960.950

-B92.817

0.970

-874. 504

-856.210

-838.073

-820.001

-802.026

-784. 144

-766. 150

-747.152

-727.454

-707.836

-688.315

654.451

0.711

477.805

374.248

305.267

256.015

219.103

190.416

167.441

148.445

132.487

118.998

107.451

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT OFG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 2.5984 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

POTASSIUM.. M. P. 336.4, B. P. 1043.7 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 167 167

79

166

168

COMPILED 

5-18-67
228 THERMO DYNAMIC PROPERTIES OF MINERALS

HIGH-SANIDINE GRAM FORMULA WEIGHT 278.337

KAlSi 3 O 8 : -Crystals 298.15° to melting point 1473°K.

TEMP. 

DEC K

H -H 

T 298 

<KCAL)

298.15 0.000 

UNCERTAINTY

400 5.500 

500 11.550 

600 17.950 

700 24.800 

800 32.000 

900 39.400 

1000 46.900

1100 54.500 

1200 62.200 

1300 70.000 

1400 77.900

S -(G -H J/1 

T T 298 

(CAL/DEG-GFVO

56.94 

1.00

72.75 

86.23 

97.89 

108.44 

118. C5 

126.76 

134.66

141.91 

148.61 

154,84 

160.70

56.94 

l.CO

59. CO 

63.13 

67.97 

73.01 

78.05 

82.98 

87.76

92.36 

96.78 

100.99 

105. C6

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-944.378 

0.930

-945.259 

-945.145 

-944.866 

-944.302 

-943.541 

-942.731

-944.483

-962.552 

-961.438 

-960.277 

-959.063

-R92.263 

0.980

-874.405 

-856. 558 

-838.868 

-621.243 

-803.715 

-786. 280

-768.733

-750. 182 

-730.931 

-711.760 

-692.686

654.045 

0.718

477.751 

374.400 

305.557 

256.403 

219.564 

190.934

168.006

149.047 

133.120 

119.657 

108.133

MFLTING POINT 

HLAT OF FUSION

H -H 

293 0

1473 DEG K 

14.702 KCAL 

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.6063 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... V. P. 533 DEC K.

POTASSIUM.. M. P. 336.4, 3. P. 1043.7 OEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 167

167

166 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 229

AOULARIA GRAM FORMULA WEIGHT 278.337

KAlSi 0 : Crystals 298.15° to 1400°K. 

J 8

T C W D U U

1 t r - r n n 

T 298

DEC K (KCAL)

29fl.l5 0.000

UNCERTAINTY

400 5.500

500 11.550

600 17.950

700 24.800

800 32.000

900 39.400

1000 46.900

11CO 54.500

1200 62.200

1300 70.000

1400 77.900

FORMATION FROM THE ELEMENTS

\ \y n I / 1

T T 298 ENTHALPY

(CAL/OEG-GFK)

55.99

l.CO

71.80

85.28

96.94

107.49

117.10

125.81

133.71

140.96

147.66

153.89

159.75

55.99

l.CO

58. C5

62.18

67. C2

72.06

77.10

82. C3

86.61

91.41

95.83

100.04

104.11

FREE ENERGY LOG K

(KCAL/GFW)

-945.000

1.200

-945.881

-945.767

-945.488

-944.924

-944.163

-943.353 -9~4"5. 16"?

-963.174

-962.060

-960.899

-959.685

-892.602

1.240

-874.647

-856.705

-838.920

-821.200

-803.577

-786.047

-768.405

-749.759

-730.413

-711.147

-691.978

'654.293

0.909

477.883

374.464

305.576

256.389

219.527

190.878

167.934

148.963

133.026

119.554

108.022

MELTING POINT 

HEAT OF FUSION

H -H 

?98 0

BOILING POINT OEG K

HEAT OF VAPOR. KCAL

MCLAR VOLUME 2.5881 CAL/BAR

TRANSITIONS IN REFERENCE STATf: ELEMENTS

ALUMINUM... M. P. 933 DEG K.

POTASSIUM.. M. P. 236.4, 6. P. 1043.7 OEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 167

79

44 COMPILED 

4-15-67
230 THERMODYNAMIC PROPERTIES OF MINERALS

KALSI308 GLASS GRAK FORMULA WEIGHT 278.337

KAlSi^O : Glass 298.15° to 1400°K. 3 8

TEMP. H -H 

T 298 

DEC K (KCAL)

298.15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

1200

1300

1400

5.542

11.743

18.341

25.391

32.772

40.331

47.988

55.783

63.777

72.049

80.702

S -(G -H )/ 

T T 298 

(CAL/DEG-GFVO

63.28

1.00

79.20

93.01

105. 03

115.89

125.74

134.64

142.71

150.14

157.10

163.70

170.12

63.28

l.CO

65.35

69.53

74.47

79.62

84.78

89.83

94.72

99.43

103.95

108.28

112.48

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFH)

-933.276

0.910

-934.115

-933.850

-933.373

-932.609

-931.667

-930.698

-932.293

-950.167

-948.759

-947.126

-945.159

-883.051

0.960

-865.841

-848.655

-831.662

-814.767

-797.997

-781.342

-764.591

-746.854

-728.438

-710. 133

-691.972

647.292

0.704

473.072

370.946

302.932

254.381

218.002

189.735

167.101

148.386

132.666

119.384

108.021

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.7844 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

POTASSIUM.. M. P. 336.4, B. P. 1043.7 OEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 166 166

167

166 COMPILED 

4-15-67
LOW-ALBITE

PROPERTIES AT HIGH TEMPERATURES 231

GRAM FORMULA WEIGHT 262.224

NaAlSi 0 0 0 : Crystals 298.15° to 1400°K.

J O

TEMP. 

DEC K

H -H 

T 298 

(KCAU

298.15 0.000 

UNCERTAINTY

400 5.410 

500 11.390 

600 17.900 

700 24.690 

800 31.690 

900 38.870 

1000 46.220

1100 53.720 

1200 61.340 

1300 69.060 

1400 76.860

S -<G -H )/ 

T T 298 

(CAL/DEG-GFVO

50.20 

0.40

65.75 

79.07 

90.93 

101.40 

110.74 

119.19 

126.94

134.08 

140.71 

146.89 

152.67

50.20 

0.40

52.22 

56.29 

61.10 

66.13 

71.13 

76.00 

80.72

85.24 

89.59 

93.77 

97.77

FORMATION FROM THE ELEMENTS

T ____________

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-937.146 

0.740

-938.146 

-938.100 

-937.706 

-937.192 

-936.614 

-936.002

-937.873 

-937.101

-959.510 

-958.429 

-957.315

-883.988 

0. 760

-865.822 

-847.598 

-829.536 

-811.555 

-793.643 

-775.802

-757.839 

-739.866

-721.521 

-701.740 

-682.027

647.979 

0.557

473.062 

370.484 

302.158 

253.378 

216.813 

188.390

165.625 

146.997

131.407 

117.973 

106.469

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 2.3917 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98, B. P. 1176.9 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 74 79 166 COMPILED 

4-15-67
232 THERMODYNAMIC PROPERTIES OF MINERALS

HIGH-ALBITE GRAM FORMULA WEIGHT 262.224

NaAlSi,O0 : Crystals 298.15° to 1400°K. J O

T C M D LJ A 1-1

T 298 

DEG K (KCAL)

298.15 0.000 

UNCERTAINTY

S -(G -H )/T

T T 298 

(CAL/DEG-GFVO

54.67 54.67 

0.45 0.45

FORMATION FROM THE ELEMENTS

FNTHALPY FREE ENERGY LOG K" 

JKCAL/GFW)

-934.513 -882.687 647.025 

0.770 0.790 0.579

400

500

600

700

800

900

1000

1100

1200

1300

1400

5.530

11.627

18.254

25.162

32.279

39.576

47.044

54.661

62.398

70.236

78.153

70.56

84.14

96.21

106.85

116.33

124.91

132.78

140.02

146.74

153.01

158.86

56.74

60.89

65.78

70.90

75.99

80.94

85.73

90.33

94.74

98.98

103.C4

-935.393 

-935.230 

-934.719 

-934.087 

-933.392 

-932.663

-934.416 

-933.527

-955.819 

-954.620 

-953.389

-864.995 

-847.263 

-829.715 

-812.264 

-794. 897 

-777.614

-760. 220 

-742.824

-725.067 

-705.882 

-686.773

472.610 

370.338 

302.223 

253.600 

217.155 

188.830

166.145 

147.585

132.052 

118.669 

107.210

MELTING POINT 1391 DEG K 

HEAT OF FUSION 13.560 KCAL

H -H KCAL 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 2.4003 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98, B. P. 1176.9 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 62 168

167

166 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 233

NAALSI308 GLASS GRAK FORMULA WEIGHT 262.224

MaAlSi 00 : Glass 298.15° to 1400°K. 3 o

I C 1*. r * n M

T 298 

DEG K (KCAL)

298.15 0.000

UNCERTAINTY

T T 298 

(CAL/OEG-GFW)

62.95 62.95 

0.60 0.60

FORMATION FROM THE ELEMENTS

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-922.609 -873.252 640.109 

0.760 0.790 0.579

400 

500 

600 

700 

800 

900 

10CO

1100

1200

1300

1400

5.468

11.536

18.167

25.118

32.321

39.751

47.400

55.254

63.286

71.480

79.820

78.66 

92.C8 

104.26 

114.98 

124.59 

133.33 

141.40

148.87

155.86

162.42

168.60

64.99 

69.Cl 

73.98 

79.09 

84.19 

89.16 

94. CO

98.64

103.12

107.44

111.59

-923.551

-923.417

-922.902

-922.227

-921.446

-922.156"

 943.027

 941.472

 939.818

 856.393

 839.419

 822.730

 806.093

 789.552

:2Z2U1Q_

 756.578

 740.066 

: 7237219"

 704.972

 686.832

467.910

366.909

299.678

251.673

215.695

.187.136

165.350

147.037

131.716

118.516

107.219

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

DEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 2.6311 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98, B. P. 1176.9 DEG K.

SILICON.... M. P. 1685 DEG K.

REFERENCES 166 168 166 COMPILED 

4-29-67
234 THERMODYNAMIC PROPERTIES OF MINERALS

NEPHELINE GRAM FORMULA WEIGHT 142.055

NaAlSiO4' Crystals 298.15° to 1521°K. Carnegieite is the stable 

phase above 1521°K.

TEMP. 

DEC K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

400 3. 

500 6. 

600 10. 

700 14. 

800 18. 

900 21. 

1000 26.

1100 30. 

1200 35. 

1300 39. 

1400 43. 

1500 47.

000

095 

280 

420 

150 

000 

970 

050

370 

050 

330 

620 

920

S -(G -H )/T 

T T 298 

(CAL/DEG-GFW)

29

0

38 

46 

53 

59 

64 

69 

73

77 

81 

84 

88 

91

.72

.30

.62 

.93 

.49 

.23 

.37 

.05 

.34

.46 

.53 

.96 

.14 

.11

29 

0

30 

34 

36 

39 

41 

44 

47

49 

52 

54 

56 

59

.72 

.30

.88 

.37 

.12 

.C2 

.87 

.64 

.29

.85 

.32 

.71 

.98 

.16

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFH)

-497. 

1.

-497. 

-498. 

-497. 

-497. 

-496. 

-496.

029 

000

864 

059 

381 

189 

953 

683

-498.910 

-498.362

-520. 

-520. 

-519. 

-518.

723 

064 

416 

778

-469 

1

THE ELEMENTS

ENERGY

.664 

.010

-460.339 

-451.401 

-441.543 

-432.247 

-422.987 

-413.761

-404 

-394

-385 

-373 

-362 

-351

.364 

.941

.121 

.854 

.630 

.471

LOG K

344.272 

0.740

251.517 

197.30V 

160.832 

134.953 

115.554 

100.475

88.373 

78.467

70.140 

62.850 

56.609 

51.209

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT DEG K

KCAL HEAT OF VAPOR. KCAL

KCAL MOLAR VOLUME 1.2944 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 DEG K.

SODIUM..... M. P. 370.98, B. P. 1176.9 DEG K.

SILICON.... P. P. 1685 OEG K.

REFERENCES 74 78 165 COMPILED 

4-15-67
PROPERTIES AT HIGH TEMPERATURES 235

MUSCOVITE GRAM FORMULA WEIGHT 398.313 

KAl 2 [AlSi 3 01() ] (OH) : Crystals 298.15° to 1500°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0. 

UNCERTAINTY

400 8. 

500 18. 

600 28. 

700 39. 

800 50. 

900 62. 

1000 74.

1100 86. 

1200 99. 

1300 112. 

1400 125. 

1500 138.

000

670 

340 

770 

660 

910 

520 

490

785 

382 

272 

449 

909

S -(G -H )/T 

T T 298 

<CAL/OEG-GFK»

69 

0

93 

115 

134 

151 

166 

179 

192

204 

215 

225 

235 

244

.00 

.70

.91 

.44 

.45 

.23 

.24 

.91 

.52

.23 

.19 

.51 

.27 

.55

69 

0

72 

78 

86 

94 

102 

110 

118

125 

1'32 

139 

145 

151

.CO 

.70

.23 

.76 

.50 

.57 

.60 

.44 

.03

.34 

.37 

.14 

.66 

.95

FORMATION FROM

ENTHALPY FREE 

(KCAL/GFW)

-1421.180 

1.300

-1422.266 

-1421.955 

-1421.174 

-1420.198 

-1419-.123 

-1417.967

-1424.287

-1441.583 

-1439.520 

-1437.243 

-1434.752 

-1432.050

-1330

1

THE ELEMENTS

ENERGY LOG K

. 103 

.320

-1299. 103 

-1267.921 

-1237.193 

-1206.604 

-1176.162 

-1145.857

-1115

-1083 

-1050 

-1018 

-986 

-954

.119

.255 

.773 

.475 

,342 

.438

974 

0

709 

554 

450 

376 

321 

278

243

215 

191 

171 

153 

139

.989 

.968

.795 

.206 

.646 

.718 

.312 

.251

.708

.222 

.371 

.221 

.974 

.061

MELTING POINT 

HFAT OF FUSION

H -H 

298 0

DEG K

KCAL

KCAL

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MCLAR VOLUME 3.3630 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 933 OEG K.

POTASSIUM.. M. P. 336.4, B. P. 1043.7 OEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 119 177 9

125

COMPILED 

2-12-67
236 THERMODYNAMIC PROPERTIES OF MINERALS

FLUORPHLOGOPITE GRAM FORMULA WEIGHT 421.268

KMg [AlSi O10 )F 2 : Crystals 298.15° to melting point 1670°K. 

Liquid 1670° to 1800°K.

TEMP. 

DEG K

H -H 

T 298 

(KCAL)

298.15 0.000 

UNCERTAINTY

400 8.930 

500 18.680 

600 29.030 

700 39.810 

800 50.870 

900 62.150 

1000 73.630

1100 85.300 

1200 97.170 

1300 109.240 

1400 121.510 

1500 133.980

1600 146.650 

1670 155.620

1670 

1700 

1*00

229.420 

234.350 

250.740

S -<G -H )/ 

T T 258 

(CAL/DEG-GFW)

75.90 

0.50

101.58 

123.31 

142.17 

158.78 

173.54 

186.83 

198.92

210.04 

220,37 

230.03 

239.12 

247.72

255.90 

261.39

305.58 

308.50 

317. 87

75.90 

0.50

79.25 

85.95 

93.79 

101.91 

109.95 

117.77 

125.29

132.49 

139.39 

146. CO 

152.23 

158.40

164.24 

168.20

168.20 

170.65 

178.57

FORMATION FROM THE ELEMENTS

T ____________ 

ENTHALPY FREE ENERGY LOG K 

(KCAL/GFW)

-1522.020 

1.200

-1522.842 

-1522.483 

-1521.839 

-1521.056 

-1520.265 

-1519.518

-1527.753

-1545.823 

-1544.624 

-1543.293

-1632.855 

-1630.390

-1627.777 

-1625.844

-1552.044

-1586.391 

-1579.945

-1439.522 

1.210

-1411.286 

-1383.300 

-1355.514 

-1327.852 

-1300.315 

-1272.855

-1244.763

-1215.457 

-1185.516 

-1155.628

-1123.367

-1087.092

-1050.977 

-1025.809

-1C25.809

- -1016.026 

-982.658

1055.195 

0.887

771.089 

604.638 

493.744 

414.573 

355.229 

309.091

272.042

241.488 

215.911 

194.278

175.365 

158.389

143.556 

134.245

134.245

130.619 

119.311

MELTING POINT 1670 OEG K 

H4AT OF FUSION 73.800 KCAL

H -H KCAL 

298 0

BOILING POINT DEG K

HEAT OF VAPOR. KCAL

MOLAR VOLUME 3.4983 CAL/8AR

TRANSITIONS IN REFERENCE STATE ELEMENTS

ALUMINUM... M. P. 923 DEG K.

POTASSIUM.. M. P. 236.4, R. P. 1043.7 OEG K,

MAGNESIUM.. M. P. 922f 3. P. 1363 DEG K.

SILICON.... M. P. 1685 OEG K.

REFERENCES 74 78 77 COMPILED 

3-31-67
PROPERTIES AT HIGH TEMPERATURES 237

TALC GRAM FORMULA WEIGHT 379.289

Mg 3 Si 4 01() (OH) 2 : Crystals 298.15° to 1100°K.

TEMP.

DEG K

298.

H

_ ~ UM

T 298

(KCAL)

15 0.000

UNCERTAINTY

400

500

600

700

800

900

1000

1100

8.561

17.997

28.148

38.889

50.152

61.903

74.121

86.793

S

T

If* U

1 b "H

T

FORMATION

9 /

298 ENTHALPY

(CAL/OEG-GFh)

62

0

86

107

126

143

158

171

184

195

.34

.15

.94

.97

.46

.01

.C3

.87

.75

.81

62

0

65

71

79

87

95

103

110

116

J34

.15

.54

.98

.55

.45

.34

.09

.63

.91

-1415

1

-1415

-1415

-1414

-1413

-1412

-1411

-1415

-1413

FROM

FREE

THE ELEMENTS

ENERGY LOG K

(KCAL/GFW)

.205

.710

.622

.372

.737

.812

.633

.211

.944

.928

-1324

1

-1293

-1262

-1232

-1202

-1171

.486

.720

.412

.882

.432

.119

.957

-1141.942

-1111

-1080

.578

.098

970.

1.

706.

552.

448.

375.

320.

277.

242.

214.

871

261

686

004

912

317

163

301

935

595

MELTING POINT 

HEAT OF FUSION

H -H 

298 0

OEG K BOILING POINT OEG K

KCAL HEAT OF VAPOR. KCAL

11.2C6 KCAL MOLAR VOLUME 3.2564 CAL/BAR

TRANSITIONS IN REFERENCE STATE ELEMENTS

MAGNESIUM.. M. P. 922, 8. P. 1363 DEG K.

SILICON.... M. P. 1685 DEG K.

RFFERENCCS 137 137 8

137

COMPILED 

4-29-67
238 THERMODYNAMIC PROPERTIES OF MINERALS

1 Adami, L. H., and Kelley, K. K., 1963, Heats of formation of two crystalline 

hydrates of ferrous sulfate: U. S. Bur. Mines Rept. Inv. 6260, 7 p.

2 Adami, L. H., and King, E. G., 1964, Heats and free energies of formation of 

sulfides of manganese, iron, zinc, and cadmium: U. S. Bur. Mines Rept. Inv. 6495,

rop.

3 Adami, L. H., and King, E. G., 1965, Heats of formation of anhydrous sulfates 

of cadmium, cobalt, copper, nickel, and zinc: U. S. Bur. Mines Rept. Inv. 6617, 

10 p.

4 Adami, L. H., and Conway, K. C., 1966, Heats and free energies of formation 

of anhydrous carbonates'of barium, strontium, and lead: U. S. Bur. Mines Rept. 

Inv.6822,7 p.

5 Bain, R. W., 1964, Steam tables: London, Her Majesty's Stationery Office, 147 

P6 Barany, R., 1962a, Heats and free energies of formation of some hydrated and 

anhydrous sodium-and calcium-aluminum silicates: U. S. Bur. Mines Rept. Inv. 

5900, 17 p.

7 Barany, R., 1962b, Heats and free energies of formation of calcium tungstate, 

calcium molybdate, and magnesium molybdate: U. S. Bur. Mines Rept. Inv. 6143, 

lip.

8 Barany, R., 1963, Heats of formation of gehlenite and talc: U. S. Bur. Mines 

Rept. Inv. 6251, 9 p.

9 Barany, R., 1964, Heat and free energy of formation of muscovite: U. S. Bur. 

Mines Rept. Inv. 6356, 6 p.

10 Barany, R., 1965, Heats of formation of goethite, ferrous vanadate, and 

manganese molybdate: U. S. Bur. Mines Rept. Inv. 6618, 10 p.

11 Barany, R., 1966, Glass-crystal transformation of nepheline and wollastonite and 

heat of formation of nepheline: U. S. Bur. Mines Rept. Inv. 6784, 8 p.

12 Barany, R., and Kelley, K. K., 1961, Heats and free energies of formation of 

gibbsite, kaolinite, halloysite, and dickite: U. S. Bur. Mines Rept. Inv. 5825, 13 

P13 Barany, R., and Adami, L. H., 1966, Heats of formation of lithium sulfate and 

five potassium-and lithium aluminum silicates: U. S. Bur. Mines Rept. Inv. 6873, 

18 p.

14 Barron,T. H. K., Berg, W. T., and Morrison, J. A., 1959, On the heat capacity 

of crystalline magnesium oxide: Royal Soc. [London] Proc. ser. A, v. 250, p. 70- 

83.
REFERENCES AND NOTES 239

15 Barton, P. B., Jr., and Bethke, P. M., 1960, Thermodynamic properties of some 

synthetic zinc and copper minerals: Am. Jour. Sci., v. 258-A, (Bradley Volume), 

p. 21-34. Barton, written commun., May 5, 1967, has also determined the free energy 

of formation of bismuthinite and his value has been adopted for these tables.

16 Benz, R., and Wagner, C., 1961, Thermodynamics of the system CaO-SiO2 from 

electromotive force data: Jour. Phys. Chemistry, v. 65, p. 1308-1311.

17 Bichowsky, F. R., and Rossini, F. D., 1936, Thermochemistry of the chemical 

substances: New York, Reinhold, 460 p.

18 Boyle, B. J., King, E. G., and Conway, K. C., 1954, Heats of formation of nickel 

and cobalt oxides (NiO and CoO) by combustion calorimetry: Am. Chem. Soc. 

Jour., v. 76, p'. 3835-3837.

19 Brodale, G., and Giauque, W. F., 1958, The heat of hydration of sodium sulfate. 

Low temperature heat capacity and entropy of sodium sulfate decahydrate: Am. 

Chem. Soc. Jour., v. 80, p. 2042-2044.

20 Brooks, A. A.,1953, A thermodynamic study of the equilibrium 2Cu(s)+H2'S(g) 

= Cu2 S(7)+H2 (g): Am. Chem. Soc. Jour., v. 75, p. 2464-2467.

21 Chisholm, R. C., and Stout, J. W., 1962, Heat capacity and entropy of CoCl2 

and MnCl2 from 11° to 300° K. Thermal anomaly associated with antiferromagnetic 

ordering in CoCl2 : Jour. Chem. Phyics, v. 36, p. 972-979.

22 Coughlin, J. P., 1954, Contributions to the data on theoretical metallurgy XII. 

Heats and free energies of formation of inorganic oxides: U. S. Bur. Mines Bull. 

542, 80 p.

23 Coughlin, J. P., 1958, Heats of formation of cryolite and sodium fluoride: Am. 

Chem. Soc. Jour., v. 80, p. 1802-1804.

24 Coughlin, J. P., and O'Brien, C. J., 1957, High temperature heat content of 

calcium orthosilicate: Jour. Phys. Chemistry, v. 61, p. 767-769.

25 Darken, L. S., and Gurry, R. W., 1945, The system iron-oxygen, I. The wustite 

field and related equilibria: Am. Chem. Soc. Jour., v. 67, p. 1398-1412.

26 Darken, L. S., and Gurry, R. W., 1946, The system iron-oxygen, II. Equilibrium 

and thermodynamics of liquid oxide and other phases: Am. Chem. Soc. Jour., v. 

68, p.798-816.

27 Desnoyers, J. E., and Morrison, J. A., 1958, The heat capacity of diamond 

between 12.8° and 277° K: Philos. Mag., v. 3, p. 42-48.

28 DeSorbo, W., and Tyler, W. W., 1953, The specific heat of graphite from 13° 

to 300° K: Jour. Chem. Physics, v. 21, p. 1660-1663.

29 Dewing, E. W., and Richardson, F. D., 1959, Decomposition equilibria for 

calcium and magnesium sulfates: Faraday Soc. Trans., v. 55, p. 611-615.

30 Dewing, E. W., and Richardson, F. D., 1960, The thermodynamics of the 

conversion of magnesium and manganese oxides to sulfides: Iron and Steel Inst. 

Jour., v. 195, p. 56-58.

31 Douglas, T. B., 1963, High-temperature thermodynamic functions for zirconium 

and unsaturated zirconium hydrides: U. S. Natl. Bur. Standards Jour. Research, 

v. 67A, p. 403-426.

32 Egan, E. P., Jr., and Wakefield, Z. T., 1960, Low temperature heat capacity and 

entropy of berlinite: Jour. Phys. Chemistry, v. 64, p. 1953-1955.
240 THERMODYNAMIC PROPERTIES OF MINERALS

33 Egan, E. P., Jr., Wakefield, Z. T., and Luff, B. B., 1961, Low temperature heat 

capacity, entropy and heat of formation of crystalline and colloidal ferric phosphate 

dihydrate: Jour. Phys. Chemistry, v. 65, p. 1265-1270.

34 Evans, W. H., and Wagman, D. D., 1952, Thermodynamics of some simple sulfurcontaining molecules: U. S. Natl. Bur. Standards Jour. Research, v. 49, p. 141- 

148.

35 Flubacher, P., Leadbetter, A. J., and Morrison, J. A., 1959, The heat capacity 

of pure silicon and germanium and properties of their vibrational frequency spectra: 

Philos. Mag., v. 4, p. 273-294.

36 Fournier, R. 0., and Rowe, J. J., 1962, The solubility of cristobalite along the 

three-phase curve, gas plus liquid plus cristobalite: Am. Mineralogist, v. 47, p. 897- 

902.

37 Frank, W. B., 1961, Thermodynamic considerations in the aluminum producing 

electrolyte: Jour. Phys. Chemistry, v. 65, p. 2081-2087.

38 Freeman, R. D., 1962, Thermodynamic properties of binary sulfides: Oklahoma 

State Univ. Research Found. Rept. No. 60, 41 p.

39 Furukawa, G. T., Douglas, T. B., McCoskey, R. E., and Ginnings, D. C., 1956, 

Thermal properties of aluminum oxide from 0 to 1200° K: U. S. Natl. Bur. 

Standards Jour. Research, v. 57, p. 67-82.

40 Furukawa, G. T., and Saba, W. G., 1965, Heat capacity and thermodynamic 

properties of beryllium aluminate (chrysoberyl), BeO.AhOs, from 16 to 380° K: 

U. S. Natl. Bur. Standards Jour. Research, v. 65A, p. 13-18.

41 Gallagher, L., Brodale, G. E., and Hopkins, T. E., 1960, Lead sulfate: Heat 

capacity and entropy from 15-330° K: Jour. Phys. Chemistry, v.64, p. 687-688.

42 Garrels, R. M., 1960, Mineral equilibria: New York, Harper and brothers, 254 

P43 Garrels, R. M., Thompson, M. E., and Siever, R., 1960, Stability of some 

carbonates at 25° C and one atmosphere total pressure: Am. Jour. Sci., v. 258, 

p.402-418.

44 Garrels, R. M., and Christ, C. L., 1965, Solutions, minerals, and equilibria: New 

York, Harper and Row, 450 p.

45 Giauque, W. F., Hornung, E. W., Kunzler, J. E., and Rubin, T. R., 1960, The 

thermodynamic properties of aqueous sulfuric acid solutions and hydrates from 15 

to 300° K: Am. Chem. Soc. Jour., v. 82, p. 62-70.

46 Goates, J. R., Cole, A. G., and Gray, E. L., 1951, Free energy of formation 

and solubility product constant of mecuric sulfide: Am. Chem. Soc. Jour., v. 73, 

p. 3596-3597.

47 Goates, J. R., Cole, A. G., Gray, E. L., and Faux, N. D., 1951, Thermodynamic 

properties of silver sulfide: Am. Chem. Soc. Jour., v. 73, p. 707-708.

48 Good, W. D., Lacina, J. L., and McCullough, J. P., 1960, Sulfuric acid: Heat 

of formation of aqueous solutions by rotating bomb calorimetry: Am. Chem. Soc. 

Jour.,v. 82, p. 5589-5591.

49 Good, W. D., 1962, The heat of formation of silica: Jour. Phys. Chemistry, v. 

66, p.380-381.

50 Grimley, R. T., and Margrave, J. L., 1960, High temperature heat content of 

sodium oxide: Jour. Phys. Chemistry, v. 64, p. 1763-1764.
REFERENCES AND NOTES 241

51 Gronvold, F., and Westrum, E. F., Jr., 1959, a-ferric oxide: Low temperature 

heat capacity and thermodynamic functions: Am. Chem. Soc. Jour., v. 81, p. 1780- 

1783.

52 Gronvold, F., and Westrum, E. F., Jr., 1962, Heat capacities and thermodynamic 

functions of iron disulfide (pyrite), iron diselenide, and nickel diselenide from 5 to 

350° K. The estmation of standard entropies of transition metal chalcogenides: 

Inorganic Chemistry, v. 1, p. 36-48.

53 Gronvold, F., Westrum, E. F., Jr., and Chou, C., 1959, Heat capacities and 

thermodynamic properties of the pyrrhotites FeS and Fe08 87S from 5 to 350° K: 

Jour. Chem. Physics, v. 30, p. 528-531.

54 Halstead, P. E., and Moore, A. E., 1957, The thermal dissociation of calcium 

hydroxide: Chem. Soc. London

55 Hatton, W. E., Hildenbrand, D. L., Sinke, G. C., and Stull, D. R., 1959, The 

chemical thermodynamic properties of calcium hydroxide: Am. Chem. Soc. Jour., 

v. 81, p. 5028-5030.

56 Hawtin, P., Lewis, J. B., Moul, N., and Phillips, R. H., 1966, The heats of 

combustion of graphite, diamond and some non-graphitic carbons: Royal Soc. 

[London] Philos. Trans., Ser. A, v. 261, p. 67-95.

57 Hays, J. F., 1966, The system CaO-Al2 O3 -SiO2 at high pressure and high 

temperature: Ph.D. thesis, Harvard Univ., 97 p.

58 Hilsenrath, J., Beckett, C. W., Benedict, W S., Fano, L., Hodge, H. J., Masi, 

J. F., Nuttall, R. L., Touloukian, Y. S., and Woolle y, H. W., 1955, Tables of thermal 

properties of gases: U. S. Natl. Bur. Standards Circ. 564, 488 p.

59 Holm, J. L., and Kleppa, O. J., 1966a, High temperature calorimetry in liquid 

oxide systems IV. The enthalpy of formation of kyanite AUSiOs: Inorganic 

Chemistry, v. 5, p. 698.

60 Holm, J. L., and Kleppa, O. J., 1966b, The thermodynamic properties of the 

aluminum silicates: Am. Mineralogist, v. 51, p 1608-1622.

61 Holm, J. L., Kleppa, O. J., and Westrum, E. F., Jr., 1967, Thermodynamics of 

polymorphic transformations in silica. Thermal properties from 5 to 1070°K and 

P-T stability fields for coesite and stishovite: Geochim. et Cosmochim. Acta, in 

press.

62 Holm, J. L., and Kleppa, O. J., 1967, Thermodynamics of the disordering process 

in albite (NaAlSiaOe): Am. Mineralogist, in press.

63 Hosteller, P. B., 1963, The stability and surface energy of brucite in water at 

25° C: Am. Jour. Sci., v. 261, p. 238-258.

64 Huber, E. J., Jr., and Holley, C. E., Jr., 1953, The heat of combustion of cerium: 

Am. Chem. Soc. Jour., v. 75, p. 5645-5646.

65 Huber, E. J., Jr., and Holley, C. E., Jr., 1956, The heat of combustion of calcium: 

Jour. Phys. Chemistry, v. 60, p. 498-499.

66 Huber, E. J., Jr., and Holley, C. E., Jr., 1962, Combustion in a bomb of metals, 

in Skinner, H. A., ed., Experimental thermochemistry, v. 2: New York, Interscience, 

p.77-94.

67 Huber, E. J., Jr., Head, E. L., and Holley, C. E., Jr., 1964, The heats of formation 

of zirconium diboride and dioxide: Jour. Phys. Chemistry, v. 68, p. 3040-3042.

68 Hultgren, R., Orr, R. L., Anderson, P. D.,.and Kelley, K. K., 1963, Selected 

values of the thermodynamic properties of metals and alloys: New York, John Wiley, 

963 p. Loose leaf supplements issued in 1964, 1965, and 1966.
242 THERMODYNAMIC PROPERTIES OF MINERALS

69 Humphrey, G. L., and King, E. G., 1952, Heats of formation of quartz and 

cristobalite: Am. Chem. Soc. Jour., v. 74, p. 2041-2042.

70 Humphrey, G. L., King, E. G., and Kelly, K. K., 1952, Some thermodynamic 

values for ferrous oxide: U. S. Bur. Mines Rept. Inv. 4870, 16 p.

71 Jeffes, J. H. E., Richardson, F. D., and Pearson, J., 1954, The heats of formation 

of manganous orthosilicate and manganous sulfide: Faraday Soc. Trans., v. 50, p. 

364-370.

72 Kay, D. A. R., and Taylor, J., 1960, Activities of silica in the lime+alumina+silica 

system: Faraday Soc. Trans., v. 56, p. 1372-1386.

73 Kelley, K. K., 1937, Contributions to the data on theoretical metallurgy VII. The 

thermodynamic properties of sulfur and its inorganic compounds: U. S. Bur. Mines 

Bull. 406, 104 p.

74 Kelley, K. K., 1960, Contributions to the data on theoretical metallurgy XIII. 

High-temperature heat-capacity, and entropy data for the elements and inorganic 

compounds: U. S. Bur. Mines Bull. 584, 232 p.

75 Kelley, K. K., 1962, Heats and free energies of formation of anhydrous silicates: 

U. S. Bur. Mines Rept. Inv. 5901, 32 p.

76 Kelley, K. K., and Anderson, C. T., 1935, Contributions to the data on theoretical 

metallurgy IV. Metal carbonates-correlation and applications of thermodynamic 

properties: U. S. Bur. Mines Bull. 384, 73 p.

77 Kelley, K. K., Barany, R., King, E. G., and Christensen, A. U., 1959, Some 

thermodynamic properties of fluorphlogopite mica: U. S. Bur. Mines Rept. Inv. 

5436. 16 p.

78 Kelley, K. K., and King, E. G., 1961, Contributions to the data on theoretical 

metallurgy XIV. Entropies of the elements and inorganic compounds: U. S. Bur. 

Mines Bull. 592, 149 p.

79 Kelley, K. K., Todd, S. S., Orr, R. L., King, E. G., and Bonnickson, K. R., 

1953, Thermodynamic properties of sodium-aluminum and potassium-aluminum 

silicates: U. S. Bur. Mines Rept. Inv. 4955, 21 p.

80 Kelley, K. K., Todd, S. S., and King, E. G., 1954, Heat and free energy data 

for titanates of iron and the alkaline-earth metals: U. S. Bur. Mines Rept. Inv. 

5059,37 p.

81 King, E. G., 1951, Heats of formation of crystalline calcium orthosilicate, 

tricalcium silicate and zinc orthosilicate: Am. Chem. Soc. Jour., v. 73, p. 656-658.

82 King, E. G., 1952, Heats of formation of manganous metasilicate (rhodonite) and 

ferrous orthosilicate (fayalite): Am. Chem. Soc. Jour., v. 74, p. 4446-4448.

83 King, E. G., Barany, R., Weller, W. W., and Pankratz, L. B., 1967, 

Thermodynamic properties of fosterite and serpentine: U. S. Bur. Mines Rept. Inv. 

6962. 19 p.

84 King, E. G., and Christensen, A. U., 1961, High-temperature heat contents and 

entropies of cerium dioxide and columbium dioxide: U. S. Bur. Mines Rept. Inv. 

5789,6 p.

85 King, E. G., and Weller, W. W., 1961a, Low-temperature heat capacities and 

entropies at 298.15° K of monotungstates of sodium, magnesium, and calcium: U. 

S. Bur. Mines Rept. Inv. 5791, 6 p.

86 King, E. G., and Weller, W. W., 1961b, Low-temperature heat capacities and 

entropies at 298.15° K of diaspore, kaolinite, dickite and halloysite: U. S. Bur. Mines 

Rept. Inv. 5810, 6 p.
REFERENCES AND NOTES 243

87 King, E. G., and Weller, W. W., 196lc, Low temperature heat capacities and 

entropies at 298.15° K of some sodium- and calcium-aluminum silicates: U. S. 

Bur. Mines Rept. Inv. 585*5. 8 p.

88 King, E. G., and Weller, W. W., 1962a, Low-temperature heat capacity and 

entropy at 298.15° K of red mecuric sulfide: U. S. Bur. Mines Rept. Inv. 6001, 

4 p.

89 King, E. G., and Weller, W. W., I962b, Low-temperature heat capacities and 

entropies at 298.15° K of antimony and indium sulfides: U. S. Bur. Mines Rept. 

Inv. 6040,5 p.

90 King, E. G., Weller, W. W., and Christensen, A. U., 1960, Thermodynamics of 

some oxides of molybdenum and tungsten: U. S. Bur. Mines Rept. Inv. 5664, 29 

p.

91 Kittrick, J. A., 1966, Free energy of formation of kaolinite from solubility 

measurements: Am. Mineralogist, v. 51, p. 1457-1466.

92 Kiukkola, K., and Wagner, C., 1957, Measurements on galvanic cells involving 

solid electrolytes: Jour. Electrochem. Soc., v. 104, p. 379-387.

93 Koehler, M. F., Barany, R., and Kelley, K. K., 1961, Heats and free energies 

of formation of ferrites and aluminates of calcium, magnesium, sodium, and lithium: 

U. S. Bur. Mines Rept. Inv. 5711, 14 p.

94 Koehler, M. F., and Coughlin, J. P., 1959, Heats of formation of ferrous chloride, 

ferric chloride and manganous chloride: Jour. Phys. Chemistry, v. 63, p. 605-608.

95 Kracek, F. C., 1953, Thermochemical properties of minerals: Carnegie Inst. 

Washington, Geophys. Lab. Ann. Rept. Director, 1952-53, p. 69-74.

96 Kracek, F. C., Neuvonen, K. J., and Burley, G., 1951, A thermodynamic study 

of the stability of jadeite: Washington Acad. Sci. Jour., v. 41, p. 373-383.

97 Kramer, J. R., 1964, Sea water; Saturation with apatites and carbonates: Science, 

v. 146, p.637-638.

98 Lander, J. J., 1951, Experimental heat contents of SrO, BaO, CaO, BaCO3 and 

SrCO3 at high temperatures. Dissociation pressures of BaCO3 and SrCO3 : Am. 

Chem. Soc. Jour., v. 73, p. 5794-5797.

99 Langmuir, D., 1965, Stability of carbonates in the system MgO-CO2 -H2 O: Jour. 

Geology, v. 73, p. 730-754.

100 Langmuir, D., and Waldbaum, D. R., written commun., 1966,calculations based 

on critical evaluation of solubility, heat of solution, thermal decomposition, and 

high-pressure phase equilibrium data.

101 Lumsden, J., 1966, Thermodynamics of molten salt mixtures: London, Academic 

Press, 351 p.

102 Mah, A. D., 1954, Heats of formation of chromium oxide and cadmium oxide 

from combustion calorimetry: Am. Chem. Soc. Jour., v. 76, p. 3363-3365.

103 Mah, A. D., 1957, Heats of formation of alumina, molybdenum trioxide, and 

molybdenum dioxide: Jour. Phys. Chemistry, v. 61, p. 1572-1573.

104 Mah, A. D., 1960, Thermodynamic properties of manganese and its compounds: 

U. S. Bur. Mines Rept. Inv. 5600, 34 p.

105 Mah, A. D., 1961, Heats of formation of cerium sesquioxide and bismuth 

sesquioxide by combustion calorimetry: U" S. Bur. Mines Rept. Inv. 5676, 7 p.
244 THERMODYNAMIC PROPERTIES OF MINERALS

106 Man, A. D., 1962a, Heats and free energies of formation of gallium sesquioxide 

and scandium sesquioxide: U. S. Bur. Mines Rept. Inv. 5965, 6 p.

107 Mah, A. D., 1962b, Heat and free energies of formation of antimony sesquioxide 

and tetroxide: U. S. Bur. Mines Rept. Inv. 5972, 5 p.

108 Mah, A. D., 1963, Heats and free energies of formation of barium oxide and 

strontium oxide: U. S. Bur. Mines Rept. Inv. 6171, 8 p.

109 Mah, A. D., and Adami, L. H., 1962, Heats and free energies of formation of 

germanium dioxide: U. S. Bur. Mines Rept. Inv. 6034, 7 p.

110 Mah, A. D., and Kelley, K. K., 1961, Heat and free energies of formation of 

oxides of vanadium: U. S. Bur. Mines Rept. Inv. 5858, 11 p.

111 Mah, A. D., Kelley, K. K., Gellert, N. L., King, E. G., and O'Brien, C. J., 1957, 

Thermodynamic properties of titanium-oxygen solutions and compounds: U. S. Bur. 

Mines Rept. Inv. 53 16, 33 p.

112 Martin, D. L., 1960a, The specific heat of sodium from 20 to 300° K: the 

martensitic transformation: Royal Soc. [London] Proc. ser. A, v. 254, p. 433-443.

113 Martin, D. L., 1960b, The specific heat of lithium from 20 to 300° K: the 

martensitic transformation: Royal Soc. [London] Proc. ser. A, v. 254, p. 444-454.

114 Martin, D. L., 1960c, The specific heat of copper from 20 to 300° K: Canadian 

Jour. Physics, v. 38, p. 17-24.

115 Navrotsky, A., and Kleppa, O. J., 1966, High temperature calorimetry in liquid 

oxide systems III. The enthalpy of formation of spinel MgAl2 O.i: Inorganic 

Chemistry, v. 5, p. 192-193.

116 Neuvonen, K. J., 1952a, Thermochemical investigation of the akermanitegehlenite series: Comm. Geol. Finlande Bull., no. 158, 50 p.

1 17 Neuvonen, K. J., 1 952b, Heat of formation of merwinite and monticellite: Am. 

Jour. Sci., Bowen volume, pt. 2, p. 373-380.

118 Otto, E. M., 1964, Equilibrium pressures of oxygen over Mn 2 O3 - Mn3 O4 at 

various temperatures: Jour. Electrochem. Soc., v. 111, p. 88-92.

119 Pankratz, L. B., 1964, High temperature heat contents and entropies of muscovite 

and dehydrated muscovite: U. S. Bur. Mines Rept. Inv. 6371, 6 p.

120 Pankratz, L. B., and Kelley, K. K., 1963, Thermodynamic data for magnesium 

oxide (periclase): U. S. Bur. Mines Rept. Inv. 6295, 5 p.

121 Pankratz, L. B., and Kelley, K. K., 1964a, High-temperature heat contents and 

entropies of andalusite, kyanite, and sillimanite: U. S. Bur. Mines Rept. Inv. 6370, 

7 P122 Pankratz, L. B., and Kelley, K. K., 1964b, High-temperature heat contents and 

entropies of akermanite, cordierite, gehlenite, and merwinite: U. S. Bur. Mines Rept. 

Inv.6555,7 p.

123 Pankratz, L. B., and King, E. G., 1965, High-temperature heat contents and 

entropies of two zinc sulfides ' and four solid solutions of zinc and iron sulfides: 

U. S. Bur. Mines Rept. Inv. 6708, 8 p.

124 Pankratz, L. B., Weller, W. W., and Kelley, K. K., 1963, Low- temperature heat 

capacity and high-temperature heat content of mullite: U. S. Bur. Mines Rept. Inv. 

6287,7 p.
REFERENCES AND NOTES 245

125 Reesman, A. L., and Keller, W. D., 1965, Calculation of apparent standard free 

energies of formation of six rock-forming silicate minerals from solubility data: Am. 

Mineralogist, v. 50, p. 1729-1739.

126 Richards, A. W., 1959, The heats of formation and dissociation of zinc sulfide: 

Jour. Appl. Chemistry, v. 9, p. 142-145.

127 Richardson, F. D., and Antill, J. E., 1955, thermodynamic properties of cuprous 

sulfide and its mixtures with sodium" sulfide: Faraday Soc. Trans., v. 51, p. 22- 

33.

128 Richardson, F. D., and Jeffes, J. H. E., 1952, The thermodynamics of substances 

of interest in iron and steel making III,Sulfides: Iron and Steel Inst. Jour.,- v. 171, 

p. 165-175.

129 Robie, R. A., 1958, Heat of formation of 7-Ca 2 SiO< calculated from data in 

King, Am. Chem. Soc. Jour., v. 7.3, 657, 1957, and Coughlin, and O'Brien, Jour. 

Phys. Chemistry, v. 61, 767, 1957.

130 Robie, R. A., 1959, Thermodynamic properties of selected minerals and oxides 

at high temperatures: U. S. Geol. Survey open-file report (TEI-609), 74 p.

131 Robie, R. A., Coesite entropy, 9.3 cal/deg-gfw, calculated from the equilibrium 

curve in Boyd, F. R., and England, J. L., Jour. Geophys. Research, v. 65, p. 749, 

1960. Entropy of tridymite from Anderson, C. T., Jour. Am. Chem. Soc., v. 58, 

p. 568, 1936, and calculated from equilibrium curve in Tuttle, O. F., and England, 

J. L., Ann. Rept. Dir. Geophys. Lab., 52, p. 61, 1953.

132 Robie, R. A., The entropies of phlogopite, montecellite, and huntite are estimates. 

Entropy of rhodonite corrected for magnetic contribution below 50" K. High 

temperature heat content of tremolite estimated. The entropy of wurtzite was 

calculated from the sphalerite data of Richards, Jour. Appl. Chemistry, v. 9, p. 

142, 1959, and the sphalerite-wurtzite inversion temperature.

133 Robie, R. A., 1965, Heats and free energies of formation of troilite, herzenbergite, 

magnesite, and rhodochrosite calculated from equlibrium data: U. S. Geol. Survey 

Prof. Paper 525-D, p. 65-72.

134 Robie, R. A., 1966, Thermodynamic properties of minerals, in Clark, S. P., 

Jr., ed., Handbook of physical constants, Geol. Soc. America Mem. 97, p. 437- 

458.

135 Robie, R. A., Sulfate data corrected for the most recent values for HzSO^aq.).

136 Robie, R. A., Bethke, P. M., and Beardsley, K. M., 1967, Selected X-ray 

crystallographic data, molar volumes, and densities of minerals and related 

substances: U. S. Geol. Survey Bull. 1248, 87 p.

137 Robie, R. A., and Stout, J. W., 1963, Heat capacity from 12 to 305° K and 

entropy of talc and tremolite: Jour. Phys. Chemistry, v. 67, p. 2252-2256.

138 Romanovskii, V. A., and Tarasov, V. V., 1960, Low-temperature heat capacity 

and entropy at 298.1 ° K of the sulfides of elements in group V of the D. I. Mendeleev 

periodic table: Soviet Physics Solid State, v. 2, p. 1176-1181, Consultants Bureau, 

translated from Fizika Tverdogo Tela, v. 2, p. 1294-1299.

139 Rosenqvist, T., 1949, A thermodynamic investigation of the system silver-silver 

sulfide: Am. Inst. Mining Metall. Petroleum Engineers Trans., v. 185, p. 451-460.

140 Rosenqvist, T., 1954, A thermodynamic study of iron, cobalt, and nickel sulfides: 

Iron and Steel Inst. Jour., v. 176, p. 37-57.
246 THBRMODYNAMIC PROPERTIES OF MINERALS

141 Rossini, F. D., Wagman, D. R., Evans, W. H., Levine, S., and Jaffe, I., 1952, 

Selected values of chemical thermodynamic properties: U. S. Natl. Bur. Standards 

Circ. 500, 1268 p.

142 Rudzitis, Edgars, Feder, H. M., and Hubbard, W. N., 1964, Fluorine bomb 

calorimetry IX. The enthalpy of formation of magnesium difluoride: Jour. Phys. 

Chemistry, v. 68, p. 2978-2981.

143 Stephenson, C. C., 1946, The standard free energy of formation and entropy of 

the aqueous magnesium ion: Am. Chem. Soc. Jour., v. 68, p. 721-722.

144 Stout, J. W., and Robie, R. A., 1963, Heat capacity from II to 300° K. Entropy 

and heat of formation of dolomite: Jour. Phys. Chemistry, v. 67, p. 2248-2252.

145 Stout, J. W., Archibald, R. C., Brodale, G. E., and Giauque, W. F., 1966, Heat 

and entropy of hydration of «-NiSO4.6H 2 O to NiSO4 .7H 2 O. Their low-temperature 

heat capacities: Jour. Chem. Physics, v. 44, p. 405-409.

146 Stubbles, J. R., and Birchenall, C. E., 1959, Redetermination of the lead-lead 

sulfide equilibrium between 585 and 920°: Am. Inst. Mining Metall. Petroleum 

Engineers Trans., v. 215, p. 535-539.

147 Stubbles, J. R., and Richardson, F. D., 1960, Equilibria in the system 

molybdenum + sulfur+hydrogen: Faraday Soc. Trans., v. 56, p. 1460-1466.

148 Stull, D. R., and others, 1966, JANAF thermochemical tables: Midland, Mich., 

Dow Chemical Co.

149 Stull, D, R., and Sinke, G. C., 1956, Thermodynamic properties of the elements: 

Am. Chem. Soc., Advances in Chemistry Series 18, 234 p.

150 Taylor, K., and Wells, L. S., 1938, Studies of the heat of solution of magnesium 

oxides and hydroxides: U. S. Natl. Bur. Standards Jour. Research, v. 21, p. 133- 

149.

151 Taylor, R. W., and Schmalzried, H., 1964, The free energy of formation of some 

titanates, silicates, and magnesium aluminate from measurements made with 

galvanic cells involving solid electrolytes: Jour. Phys. Chemistry, v. 68, p. 2444- 

2449. The equilibrium data of Taylor and Schmalzried and unpublished 

measurements of D. R. Wones, oral commun., May 10, 1967, were used to calculate 

the entropy of fayalite.

152 Todd, S. S., and Kelley, K. K.., 1956, Heat and free-energy data for tricalcium 

dititanate, sphene, lithium metatitanate, and zinc-titanium spinel: U. S. Bur. Mines 

Rept. Inv. 5193, 18 p.

153 Torgeson, D. R., and Sahama, .Th. G., 1948, A hydrofluoric acid solution 

calorimeter and the determination of the heats of formation of Mg2 SiO4 , MgSiO3 , 

and CaSiO.v Am. Chem. Soc. Jour., v. 70, p. 2156-2160.

154 Toulmin, P., Ill, and Barton, P. B., Jr., 1964, Thermodynamic study of pyrite 

and pyrrhotite: Geochim. et Cosmochim. Acta, v. 28, p. 641-671.

155 Victor, A. C., 1962, Heat capacity of diamond at high temperatures: Jour. Chem. 

Physics, v. 36, p. 1903-1911.

156 Victor, A. C., and Douglas, T. B., 1961, Thermodynamic properties of thorium 

dioxide from 298 to 1200° K: U. S. Natl. Bur. Standards 'Jour. Research, v. 65A, 

p. 105-111.

157 Victor, A. C., and Douglas, T. B., 1963. Thermodynamic properties of magnesium 

oxide and beryllium oxide from 298 to 1200° K: U. S. Natl. Bur. Standards Jour. 

Research, v. 67A, p. 325-329.
REFERENCES AND NOTES 247

158 Wagman, D. D., Evans, W. H., Halow, I., Parker, V. B., Bailey, S. M., and 

Schumm, R. H., 1965, Selected values of chemical thermodynamic properties. Part 

1: U. S. Natl. Bur. Standards Tech. Note 270-1, 124 p.

159 Wagman, D. D., Evans, W. H., Halow, I., Parker, V. B., Bailey, S. M., and 

Schumm, R. H., 1966, Selected values of chemical thermodynamic properties, Part 

2: U. S. Natl. Bur. Standards Tech. Note 270-2, 62 p.

160 Wagner, J. B., and Wagner, C., 1957, Determination of the standard free energy 

of formation of cuprous sulfide at 300° C: Jour. Electrochem. Soc., v. 104, p. 509- 

511.

161 Waldbaum, D. R., Entropy of SiO2 glass calculated from the melting point and 

heat of melting of cristobalite, data in Wise, S. S., Margrave, J. L., Feder, H. M., 

and Hubbard, W. N., Jour. Phys. Chemistry, v. 67, p. 815, 1963, and the entropy 

change S2 98.i5-S0 measured by Westrum, E. F., Jr., written commun., 1959.

162 Waldbaum, D. R., Calculated from data in Darken, L. S., and Gurry, R. W., 

Jour. Metals, v. 3, p. 1015, 1951. Heat of formation of anatase was calculated from 

the phase equilibrium studies of Osborn., E. F., Am. Ceram. Soc. Jour., v. 36, p. 

147-152, 1953.

163 Waldbaum, D. R., High-temperature heat content assumed to be the same as 

for quartz after extracting the heat of the a-/3 transition. The high temperature 

heat capacities of grossular and Ca-Al pyroxene are estimates.

164 Waldbaum, D. R., 1965, Thermodynamic properties of mullite, andalusite, 

kyanite and sillimanite: Am. Mineralogist, v. 50, p. 186-195.

165 Waldbaum, D. R., Calculations based on data in Robertson, E. C., Birch, F., 

and MacDonald, G. J. F., Am. Jour. Sci., v. 255, p. 115, 1957, and in Kracek, 

F. C., Neuvonen, K. J., and Burley, G., Washington Acad. Sci. Jour., v. 41, p. 

373, 1951.

166 Waldbaum, D. R., 1966, Calorimetric investigation of the alkali feldspars: Ph.D. 

thesis, Harvard Univ., 247 p. A later adjustment of the values for albite glass was 

made using the data of Holm, J. L., and Kleppa, O. J., Am. Mineralogist, in print, 

1967.

167 Waldbaum, D. R., Entropy of microcline assumed to be equal to the measured 

translational entropy of adularia. Entropies of sanidine, adularia, and glass were 

corrected for the configurational contribution arising from Al/Si disorder.

168 Waldbaum, D. R., and Robie, R. A., 1966, Thermodynamics of K/Na- mixing 

and Al/Si-disordering in the system KAISisOs- NaAlSiaOs (alkali feldspars): [abs.]: 

Calorimetry conference, 21st, Boulder, Colo., June 1966, program of meeting.

169 Weeks, W. F., 1956, Heats of formation of metamorphic minerals in the system 

CaO--MgO-SiO2 -H2 O and their petrological significance: Jour. Geology, v. 64, p. 

456-472.

170 Weller, W. W., 1965, Low-temperature heat capacities and entropies at 298.15° 

K of anhydrous sulfates of cobalt, copper, nickel, and zinc: U. S. Bur. Mines Rept. 

Inv. 6669,6 p.

171 Weller, W. W., 1966, Low-temperature heat capacities and entropies at 298.15° 

K of ferrous molybdate and ferrous tungstate: U. S. Bur. Mines Rept. Inv. 6782, 

5 P.

172 Weller, W. W., and Kelley, K. K., 1963, Low-temperature heat capacities and 

entropies at 298.15° K of akermanite, cordierite, gehlenite, and merwinite: U. S. 

Bur. Mines Rept. Inv. 6343, 7 p.
248 THERMODYNAMIC PROPERTIES OF MINERALS

173 Weller, W. W., and Kelley, K. K., 1964a, Low-temperature heat capacities and 

entropies at 298.15° K of sulfides of arsenic, germanium and nickel: U. S. Bur. 

Mines Rept. Inv. 6511, 7 p.

174 Weller, W. W., and Kelley, K. K., 1964b, Low-temperature heat capacities and 

entropies at 298.15° K of lead molybdate and lead tungstates: U. S. Bur. Mines 

Rept. Inv. 6357, 5 p.

175 Weller, W. W., and King, E. G., 1963a, Low-temperature heat capacities and 

entropies at 298.15° K of monomolybdates of sodium, magnesium, and calcium: 

U. S. Bur. Mines Rept. Inv. 6147, 6 p.

176 Weller, W. W., and King, E. G., 1963b, Low-temperature heat capacities and 

entropies at 298.15° K of the sesquioxides of scandium and cerium: U. S. Bur. 

Mines Rept. Inv. 6245, 6 p.

177 Weller, W. W., and King, E. G., 1963c, Low-temperature heat capacity and 

entropy at 298.15° K of muscovite: U. S. Bur. Mines Rept. Inv. 6281, 4 p.

178 Westrum, E. F., Jr., written commun., 1959.

179 Westrum', E. F., Jr., and Beale, A. F., Jr., 1961, Heat capacities and chemical 

thermodynamics of cerium (III) fluoride and cerium (IV) oxide from 5 to 300° K: 

Jour. Phys. Chemistry, v. 65, p. 353-355.

180 Wise, S. S., Margrave, J. L., Feder, H. M., and Hubbard, W. N., 1963, Fluorine 

bomb calorimetry V., The heats of formation of silicon tetrafluoride and silica: Jour. 

Phys. Chemistry, v. 67, p. 815-821.
INDEX OF NAMES

Page

Acanthite ____________ 14,82 

Adularia _____________24, 229 

Akermanite ___________23, 211 

Alabandite ___________ 15,87 

Albite (low, high) ____24,231,232 

Altaite ______________ 15 

Aluminum ____________ 11,27 

Aluminum ion _________ 11 

Alunite ______________21,194 

Ammonia _____________ 14, 79 

Ammonia-niter _________21,189 

Ammonium ion _________ 14 

Analcime _____________ 24 

Anatase _____________19,147 

Andalusite ___________23, 203 

Anglesite ________-___22,197 

Anhydrite ____________21,192 

Anorthite _____________24, 226 

Antimony ____________ 13,66 

Aragonite _____________20,181 

Arcanite _____________21,193 

Argentite _____________ 82 

Arsenic _____________ 11, 28 

Arsenolite ____________ 16 

Azurite _____________ 20

Baddeleyite ___________19,152 

Barite _______________21,191 

Barium ____..________ 11,31 

Barium ion __:_________ 11 

Barium oxide _..________ 16,97 

Berlinite _____________ 22 

Beryllium _____________ 11,32 

Bianchite ____________ 22 

Bicarbonate ion ________ 16 

Bismite ______________ 16,99 

Bismuth _____________ 11,33 

Bismuth ion __________ 11 

Bismuthinite ___________ 14 

Bisulfide ion ___________ 15 

Bixbyite ____...________17,123 

Boehmite _____________ 16,94 

Borax ________________ 22 

Boric oxide ___________ 16,96 

Boron _______________ 11,30 

Brochantite ____.______ 21 

Bromargyrite __________19,162 

Bromellite ____________ 16,98 

Bromide ion _____..____ 11

Page

Bromine ___________ 11, 34 

Brucite ______________17,120 

Bunsenite ____________17,128

Ca-Al pyroxene ________23,220 

Cadmium ___________ 11,38 

Calcite ______________20,182 

Calcium _______________ 11,37 

Calcium ion ________ 11 

Calcium olivine ________23,207 

Calomel _____________ 20 

Carbon ____________11, 35,36 

Carbon dioxide _________16,101 

Carbon monoxide ________16,100 

Carbonate ion _______ 16 

Carbonic acid (aqueous) __ 16 

Cassiterite ____________18,143 

Celestite _____________ 22 

Cementite ____________ 14,81 

Cerianite _____________16,104 

Cerium ______________ 11,39 

Cerium ion ___________ 11 

Cerussite ____________ 21 

Chalcanthite ___________ 21 

Chalcocite ____________ 15,83 

Chlorargyrite __________19,163 

Chloride ion ___________ 11 

Chlorine ______________ 11,40 

Chloromagnesite ________20,169 

Chromite _____________19,154 

Chromium ____________ 12,42 

Chrysoberyl ___________ 19 

Chrysotile ____________ 25 

Cinnabar _____________ 15 

Claudetite _____________ 16 

Clausthalite ___________ 15 

Clinoenstatite __________24, 222 

Cobalt _______________ 12,41 

Cobaltous ion __________ 12 

Cobalt oxide ___________16,105 

Coccinite ______________20,179 

Coesite ______________18,140 

Cooperite _____________ 15 

Copper _______________ 12,43 

Cordierite ____________23, 215 

Corundum ____________ 16,93 

Cotunnite _____________20,173 

Covellite ____ ________ 15 

Cristobalite ___________18,138

249
250 INDEX OF NAMES

Page

Cryolite _____________20,177 

Cupric ion ____ _ 12 

Cuprite _____________16,108 

Cuprous ion ________ 12

Diamond __________ 11,36 

Diaspore ____________- 16 

Dickite ______________ 25 

Diopside ____..________24,221 

Dolomite _____________20,183

Epsomite ____________ 22 

Eskolaite _____________16,106 

Eucryptite ___________ 24

Fayalite _____________-23, 213 

Ferberite ____________ 22 

Ferroselite ____________ 15 

Ferric ion ____________ 12 

Ferrous ion ___________ 12 

Ferrous oxide _._________17,110 

Fluorapatite __________22,201 

Fluorine _____________ 12,44 

Fluorite _____________20,174 

Fluor-phlogopite ________25, 236 

Forsterite ____________23, 214 

Frohbergite ___________ 15

Galena ______________ 15,89 

Gehlenite _____________23, 208 

Geikielite ____________19,161 

Germanium dioxide ____ 17 

Gibbsite _____________ 16,95 

Goethite __________l_ 17 

Gold _______________ 11,29 

Goslarite ____________ 22 

Graphite ____________ 11,35 

Greenockite ___________ 15 

Grossular ____________23,209 

Gypsum _____________ 21

Hafnia ______________17,115 

Hafnium _____________ 12,47 

Halite _______________20,172 

Halloysite ____________ 25 

Hausmannite _____ - 17,124 

Hematite _____________17, 111 

Hercynite __________ 19 

Herzenbergite _______ 15,90 

Hexagonal anorthite __ 24 

Huntite _____________ 21 

Hydrogen ____________ 12,46

Page

Hydrogen chloride _____20,167 

Hydrogen ion __________ 12 

Hydrogen sulfide ________ 15,86 

Hydrophilite ___________19,164 

Hydroxide ion __________ 17 

Hydroxylapatite ________22,200

Ice ________________ 17

Ilmenite _____________19,155 

lodargyrite ___________20,178 

Iodide ion ________ __ 12 

Iodine _______________ 12,49 

Iron _______________ 12,45

Jadeite ______________24,224

Kaliophilite ___________ 24 

KAlSi308 glass ________24,230 

Kaolinite _____________ 25 

Karelianite ___________19,149 

Kyanite _____________23, 202

Larnite ______________23, 206 

Lawrencite ___________20,165 

Lawsonite ____________ 23 

Lead _______________ 13,61 

Lead ion _________ __ 13 

Lead monoxide _________ 132 

Leonhardite ___________ 24 

Leucite ______________ 24 

Lime _______________16,102 

Litharge _____________18,130 

Lithium _____________ 12,51 

Lithium ion ___________ 12 

Lithium oxide __________17,118

Magnesioferrite ____ __19,160 

Magnesite ____________21,184 

Magnesium ___________ 13, 52 

Magnesium ion _____ _ 13 

Magnetite ____________17,112 

Malachite ____________ 20 

Manganese ___________ 13, 53 

Manganosite ______ 17,121 

Manganous ion ___:_ __ 13 

Mascagnite ___________22,195 

Massicot ____________18,131 

Melanterite ___________ 21 

Mercuric ion ______ _ 12 

Mercurous ion _________ 12 

Mercury _____________ 12,48 

Merwinite ___.._______23,210
INDEX OF NAMES 251

Page

Metacinnabar ____ ____ 15 

Methane _____________ 14 80 

Microcline ___________24, 227 

Millerite _____________ 15,88 

Minium _____________18,133 

Mirabilite _______*.____ 22 

Molybdenite __________ 15 

Molybdenum __________._ 13, 54 

Molybdite ________..__17,125 

Molysite ____________20,166 

Monoclinic sulfur _______ 13, 63 

Monteponite __________ 16 

Monticellite ___________ 23 

Montroydite __________17, 116 

Morenosite ___________ 22 

Mullite ______________23, 205 

Muscovite ___________25, 235

NaAlSi308 glass ________24,233 

Nepheline ____________24, 234 

Nepheline s.s - _______________ 24

Nickel _______________ 13,58 

Nickelous ion ________ 13 

Niobium _____________ 13, 57 

Niter ______________.21,188 

Nitrate ion ___________ 17 

Nitrobarite ____________21,187

Nitrogen ____________ 13/55

Nitrogen dioxide _______17,126

Oldhamite ____________ 15

Orpiment _____________ 14 

Otavite ______________ 20 

Oxygen ______________ 13,59

Periclase _____________17,119 

Perovskite ____________19,153 

Phenacite _______ _ 23 

Phlogopite ______-____ 25 

Phosphate ion ___ _ 18 

Phosphorus _..________ 13,60 

Phosphorus pentoxide _____18,129 

Picrochromite __________19,159 

Platinum _____________ 13,62 

Portlandite _..________16,103 

Potassium ___________ .12, 50 

Potassium ion _________ 12 

Potassium oxide ________17,117 

Powellite ____________.. 22 

Pseudobrookite _________19,157 

Pseudowollastonite ______23, 219

Page

Pyrite _..____________ ___ 15,85

Pyrolusite _____________17,122

Pyrrhotite ____________ 15

Quartz _____ ___.__..____18,137

Realgar _____ 14 

Retgersite __ - 22 

Rhodochrosite ______ 21,185 

Rhodonite _______ 24, 223 

Rutile __._.________ 18,146

Salammoniac ___ 20,171 

Sanidine (high) ____ 24, 228 

Scacchite _____________20,170 

Scandium sesquioxide 18 

Scheelite ___________ - 22 

Selenium _____________ 13,67 

Sellaite ___________ 20,175 

Siderite __..__..______ 21 

Silica glass _________ 18,142 

Silicic acid (aqueous) _ 18 

Silicon ______________ 13,68 

Silicon monoxide ____- _18,136 

Sillimanite ___________23, 204 

Silver ________________ 11,26 

Silver ion ________ __ 11 

Smithsonite ________...._ 21 

Soda niter ____________21,190 

Sodium ______________ 13,56 

Sodium ion _..______ _ 13 

Sodium oxide __________17,127 

Sphalerite ____________ 15,91 

Sphene ______________23, 212 

Spinel ________________19,158 

Spodumene ___________ 24 

Steam _______________17,114 

Stibnite ______________ 15 

Stishovite ____________18,141 

Stolzite ______________ 22 

Strengite _____________ 22 

Strontianite ___________21,186 

Strontium ____.________ 14, 70 

Strontium ion _________ 14 

Strontium oxide ________18,144 

Sulfate ion ___________ 18 

Sulfide ion ____________ 13 

Sulfite ion ______.._____ 18 

Sulfur (mono., ortho., S2 , S 8 )_ 13,

63, 64, 65 

Sulfur dioxide _________18,134
252 INDEX OF NAMES

Page

Sulfur trioxide __________18,135 

Sulfuric acid __________ 21 

Sylvite _______________20,168 

Szomolnokite .___________ 21

Talc ________________25, 237

Tellurite _____________ 18 

Tellurium _____________ 14,71 

Tenorite ______________16,107 

Tephroite _____________23, 216 

Thenardite __-_________22,196 

Thorianite ____________18,145 

Thorium ______________ 14,72 

Tin ________________ 14,69 

Titanium _____________ 14,73 

Titanomagnetite ________19,156 

Tremolite _____________24, 225 

Trevorite _________:____ 19 

Tridymite ____________18,139 

Troilite _______.______ 15,84 

Tungsten (wolfram) _____ 14,76 

Tungsten trioxide _______19,150 

Tungstenite ___________ 15

Page

Uraninite ____________19,148 

Uranium _______ _ 14,74 

Uranous ion __..____ 14 

Uranic ion ________-___ 14 

Valentinite _-__ - 18 

Vanadium ______-_-___ 14, 75 

Vanadous ion __________ 14 

Vanadic ion ____-_- __ 14 

Villiaumite ___________20,176

Water ______________17,113 

Whitlockite ___________22,199 

Willemite ____________ 23 

Witherite ____________20,180 

Wollastonite __________ 23, 218 

Wulfenite ____________ 22 

Wurtzite ____..________ 15,92 

Wustite _____________16,109

Zinc _______________ 14,77 

Zinc ion ______________ 14 

Zincite ___.____________19,151 

Zinkosite _____________22, 198 

Zircon _______________23, 217 

Zirconium ____________ 14, 78
INDEX OF FORMULAS

Page

Ag _________________________ 11,26

Ag+ _______________________ 11

AgBr ______________19,162 

AgCl _______________19,163 

Agl ________________20,178 

Ag2S _______________ 14,82 

Al _________________ 11,27 

A1+ + + _____________ 11 

A120S _______________ 16,93 

3A12 63 2Si02 _________23, 205 

AIO(OH) ____________ 16,94 

A1(OH) 3 _____________ 16,95 

A1P04 _______________ 22 

Al2Si05 ________23, 202, 203, 204 

Al2Si 2 65 (OH) 4 ________ 25 

As _________________ 11,28 

As2 03 ______________ 16 

AsS ________________ 14 

As2S3 ______._______ 14 

Au _________________ 11,29

B _________________ 11,30 

B2 03 ________________ 16,96 

Ba _________________ 11,31 

Ba+ + _______________ 11 

BaC03 ______________20,180 

Ba(N03 ) 2 ____________21,187 

BaO ________________ 16,97 

BaS04 ___.___________21,191 

Be _______.________ 11,32 

BeAl2 04 _____________ 19 

BeO _________________ 16,98 

Be2 SiO4 _____________ 23 

Bi _..___________ H,33 

B1 + + + _____________ 11 

Bi2 03 _______________ 16,99 

Bi~S3 _______________ 14 

Br2 ________________ 11,34 

Br- _______________________ 11

C ________________11, 35, 36 

CH4 _______________ 14,80 

CO ________________16,100 

C02 ________________16,101

CO, 16

Ca ________________ 11,37

Ca+ + ______________ 11

Page

CaAl2Si00 ____________23, 220 

CaAl2Si.,08 _________._.._24, 226 

Ca 2Al 2 Si07 ___________23, 208 

Ca3Al2 Si3 O12 __________23, 209 

CaAl2 Si 2 07 (OH) 2 «H2 0___ 23 

Ca 2Al4 Si8 024 7H2 0 _____ 24 

CaC03 ___________20,181,182 

CaCl2 _______________19,164 

CaF2 _______________20,174 

CaMg(C03 ) 2 __________20,183 

CaMgSi04 ____________ 23 

Ca3Mg(Si04 )., _________23,210 

Ca 2 MgSi 2 07 __________23,211 

CaMg(Si03 ) 2 __________24, 221 

Ca2Mg5 Si8 022 (OH), _____24, 225 

CaMo04 _____________ 22 

CaO ________________16,102 

Ca(OH) 2 ____________16,103 

Ca 3 (P04 ) 2 ____________22,199 

Ca5 (P04 ) 3F ___________22, 201 

Ca,(P04 ) 3OH _________22,200 

CaS ________________ 15 

CaS04 ______________21,192 

CaS04 2H2 0 __________ 21 

CaSiO, ___________23, 218, 219 

Ca2 Si64 ___________23, 206,207 

CaTi03 ______________19,153 

CaTiSi05 _____________23,212 

CaW04 ______________ 22 

Cd _________________ 11,38 

CdC0 3 -_____________ 20 

CdO ________________ 16 

CdS ________________ 15 

Ce ________________ 11,39 

Ce+ + + _____________ 11 

Ce02 _______________16,104 

C1 2 ________________ 11,40

Cl- ________________ 11 

Co _________________ 12,41 

Co++ _______________ 12 

CoO ________________16,105 

Cr _________________ 12,42 

Cr2 03 _______________16,106 

Cu _________________ 12,43 

Cu+ _______________ 12 

Cu + + _______________ 12 

CuO _______________16,107

253
254 INDEX OF FORMULAS

Page

Cu2 0 ________ -______16,108

Cu2 (OH) 2C03 __________ 20 

Cu3 (OH) 2 (CO3 ) 2 ________ 20 

CuS ________________ 15 

Cu2 S _______________ 15,83 

CuSO4 5H2 0 __________ 21

Cu4 S04 (OH) ( 21

F2 __________________ 12,44 

F- _________________ 12 

Fe _________________ 12,45

Fe++ ________________ 12 

Fe+ + + _____________ 12

FeAl.,04 19

Fe3C ___.__________ 14, 81 

FeC03 ______________ 21 

FeCl2 _______________20,165 

FeCl3 _______________20,166 

FeCr2 04 _____________19,154 

FeO ________________17,110 

Fe 947 0 _____________16,109 

Fe 2 03 _______________17, 111 

Fe3 04 _______________17,112 

FeO (OH) ____________ 17

Fe(PO4 ) '2H2 0 22

FeS ________________ 15,84 

Fe 877 S ____________________ 15

FeS2 _______________ 15,85 

FeS04 « 1H2 0 _________ 21 

FeSO_ 7H.O __________ 21

FeSe, 15

Fe2 Si04 ________-____.23, 213 

FeTe2 _______________ 15 

FeTi03 _____________19,155 

Fe2Ti64 _____________19,156 

Fe nTi05 _____________19,157 

FeW04 ______..________ 22

H2 _____________..__ 12,46 

H+ ________________ 12 

HC03 - _____________ 16 

H2C03 ______________ 16 

HCI _______________-20,167 

H2 0 _____________17,113,114 

HS- _______________ 15 

H..S ..._______________ 15,86 

H^S04 _________________ 21

H.,Si03 ______________ 18 

Hf _________________ 12,47 

Hf02 _________..______17,115 

Hg ________________ 12,48

Page 

Hg++ ____________________ 12

Hg2 + + ______________ 12 

HgCl __________-. ___ 20 

HgI2 __________- _____20,179 

HgO ________________17,116 

HgS _______________ 15

I12,49

12

K ___________________ 12,50 

K+ _________________ 12

KAlSi04 _____________ 24 

KAlSi 2 06 _____________ 24 

KAlSi,08 ____24, 227, 228, 229, 230 

K.,A10 (OH) 12 (S04 ) 4 _______21,194

KAl.,[AlSi3 010 ](OH), ___-25,235 

KCl" _________I_____20,168 

KMgs [AlSi 3 010 ]F2 _______25, 236 

KMg3 [AlSi3 010 ](OH) 2 ____ 25 

K0 0 ________________17,117 

KNO, _______________21,188 

K2 S04 _______________21,193

Li _________________ 12,51 

Li+ _________________ 12 

LiAlSi04 __-___________ 24 

LiAl(Si03 )., ___________ 24 

Li 2 0 __' '-_________________17,118

Mg ________________ 13,52 

Mg++ ______________ 13 

MgAl 2 04 ____________19,158 

Mg2 Al 3 (AlSi5 018 ) ______23, 215 

MgC03 ______________21,184 

Mg3Ca(C03 ) 4 _______________ 21

MgCl 2 _______________20,169 

MgCr2O4 _____.._______19,159 

MgF, _______________20,175 

MgFe.,04 _____________19,160 

MgO "________________17,119 

Mg(OH) 2 ____________17,120 

MgS04 7H2 0 _________ 22 

MgSi03 _____________24, 222 

Mg2Si04 _____________23, 214 

Mg3 Si 4 010 (OH) 2 ____________25,237

Mg3 [Si 2OJ(OH) 4 ___________ 25

MgTi03 _____________19,161 

Mn ____-____________ 13,53 

Mn++ ______________ 13 

MnCO, ____-_________21,185
INDEX OF FORMULAS 255

Page

MnCl 2 _______________20,170 

MnO _______________17,121 

Mn02 ______________17,122 

Mn2 03 _______________17,123 

Mn3 04 ______________17,124 

MnS _______________ 15,87 

MnSi03 _____________24,223 

Mn2Si04 _____________23,216 

Mo _________________ 13,54 

Mo03 _______________17,125

MoS0 15

N2 ________________ 13,55 

NH3 _______________ 14,79 

NH4 + ______________ 14 

NH4C1 ______________20,171 

NH4N03 ____________21,189 

(NH4 ) 2S04 _______________22,195

N02 ______________17,126 

N03 - _____ _______ 17

Na ________________ 13,56 

Na+ ______________ 13 

Na3AlF6 _____________20,177 

NaAl(Si03 ) 2 __________24,224 

NaAlSi04 ____________24,234 

NaAlSi3O8 ______24, 231,232, 233 

Na 8K 2AlSi04 s.s _______ 24 

NaAlSi2 06 H2 0 ________ 24 

Na2B4 07 10H2 0 ________ 22 

NaCl _______________20,172 

NaF _______________20,176 

NaN03 ______________21,190 

Na2 0 _______________17,127 

Na2S04 _____________22,196 

Na2 S04 10H2 0 ________ 22 

Nb _________________ 13,57 

Ni ________________ 13,58 

Ni++ ______________ 13 

NiFe2 04 _____________ 19 

NiO _,.______________17,128 

NiS ________________ 15,88 

NiS04 «6H2 0 __________ 22 

NiS04 7H2 0 __________ 22

02 ________________ 13,59

OH- 17

P _________________ 13,60 

P04 ____________ 18

(P2 05 ) 2 ________ ____.__18,129

Pb ________________ 13,61

Page

Pb + + ______________ 13 

PbC03 ______________ 21 

PbCl2 ______________20,173 

PbMo04 _________^___ 22 

PbO __________18,130,131,132 

Pb3 04 ______________18,133 

PbS ________________ 15,89 

PbS04 ______________22,197 

PbSe ______________ 15 

PbTe ______________ 15 

PbW04 ______________ 22 

Pt ________________ 13,62 

PtS ________________ 15

S _________________ 13,63 

S ______________ 13 

S2 ________________ 13,64 

S8 ________________ 13,65 

S02 ______________-18,134

S0a ~ ~ 18

Sb2S3 

Sc2 03

S03 ________________18,135 

S04 -~ ____________ 18 

Sb ________________ 13,66 

._______-_______ 15

____________ 18

Se ________________ 13,67 

Si _________________ 13,68 

SiO ________________18,136 

Si02 __18,137,138,139,140,141,142 

Sn ________________ 14,69 

Sn02 ________________18,143 

SnS _______________ 15,90 

Sr ________________ 14,70 

Sr+ + ______________ 14 

SrCO3 ______________21,186 

SrO ________________18,144 

SrS04 ______________ 22

Te ________________ 14,71

TeO, 18

Th ________________ 14,72 

Th02 ______________18,145 

Ti ________________ 14,73 

Ti02 _____________18,146,147

U _________________ 14,74 

U+ + + ______________ 14

U+ + + + ___________._ 14 

U02 _______________19,148

V __________________ 14,75
256 INDEX OF FORMULAS

V+ + _. 

V+ + +

' Page

- 14

14

V2 03 __- _____________19,149

W __________________ 14,76 

W03 ________________19,150 

WS2 _______________ 15

Zn __________________ 14,77 

Zn + + ________________ 14

ZnCO, 21

Page

ZnO ________________19,151 

ZnS ________________15, 91, 92 

ZnS04 _______________22,198 

ZnSO4 -6H2 0 __________ 22 

ZnS04 7H2 0 __________ 22 

Zn2 SiO4 _____________ 23 

Zr _________________ 14,78 

ZrO2 ________________19,152 

ZrSi04 ______________23, 217

ORTON MEMORIAL LIBRARY

THE OHIO STATE UNIVERSITY

155 S. OVAL DRIVE

* U. S. GOVERNMENT PRINTING OFFICE : 1970 53*-81 (234)