NBSIR 81-2343

Thermodynamic Properties of

Solid Alkali Aluminosilicates at

Elevated Temperatures

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards

Center for Chemical Physics

Chemical Thermodynamics Division

Washington, DC 20234

May 1981

Final Report

Issued October 1 981

QCy

too

. U.5«>

^'’epared for jpartment of Energy

organtown Energy Technology Center

organtown. West Virginia

I9BI

NBSIR 81-2343

THERMODYNAMIC PROPERTIES OF

SOLID ALKALI ALUMINOSILICATES AT

ELEVATED TEMPERATURES

R. H. Schumm

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards

Center for Chemical Physics

Chemical Thermodynamics Division

Washington, DC 20234

May 1981

Final Report

Issued October 1981

Prepared for Department of Energy

Morgantown Energy Technology Center

Morgantown, West Virginia

U.S. DEPARTMENT OF COMMERCE. Malcolm Baldrige, Secretary

NATIONAL BUREAU OF STANDARDS. Ernest Ambler, Director
'n • i

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Table of Contents

Abstract

1. Introduction

1.1 Definitions, Units, Special Considerations •

1.2 Generation of Tables

1 .3 Use of Tables

2. Acknowledgement

3. Tables

3.1 Pure Substances

LiAlSiO^ eucryptite

LiAlSi20g alpha spodumene

" beta spodumene

Li2Al2Sig02Q petal ite

NaA102 sodium aluminate

NaAlSiO^ nepheline

" carnegieite

NaAlSi20g jadeite

" dehydrated anal cite. . .

NaAlSi20g*H20 analcite

NaAlSigOg low al bite

" high albite

glass

KAIO2 potassium aluminate

KAlSiO^ kaliophilite

KAlSi20g leucite

KAlSigOg microcline

" sanidine

" glass

KAl 2( AlSigO^ q)

(

0H)2 muscovite mica

1

(

2

4

5

7

8

8

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

1
3.2 Mixtures of NaAlSi^Og with KAlSi^Og 28

3.3 Elements 36

O

2

, Si , A1 , Li , Na, K

4. References 43
Thermodynamic Properties of Solid Alkali Aluminosilicates

at Elevated Temperatures

R.H. Schumm

National Bureau of Standards

Washington, D.C. 20234

Abstract

This report presents selected heat capacities, entropies, enthalpies,

standard enthalpies of formation, standard free energies of formation

and the equilibrium formation constants for solid sodium aluminate,

solid potassium aluminate and solid aluminosilicates of lithium, sodium,

and potassium. Values are listed in 28 tables for 17 different compositions

(13 pure compounds and their polymorphs; 4 mixtures, each in low- and

high-temperature configurations) from 298K to temperatures ranging up to

2000K.

Key words: selected values; enthalpy; entropy; equilibrium constant of

formation; free energy of formation; Gibbs energy function; heat capacity;

heat of formation; thermochemical tables.
1. Introduction

This report presents selected values of thermodynamic properties of

solid lithium, sodium, and potassium aluminosilicates and sodium and

potassium alumi nates at temperatures ranging from 298K to 2000K.

1 .1 Definitions, Units, Special Considerations

A standard process, in the thermodynamic sense, is one in which the

reactants (starting substances; elements or compounds) and products are

all in their standard states, i.e., one atmosphere pressure, solid or

liquid as determined by the melting point. In this report, the liquid

state is taken as the standard state for all elements above their normal

boiling points (n.b., the alkali elements). Note that the standard

state of a substance is defined anew for each temperature.

The thermal functions are listed as the increase of the property

above the base temperature: 298.15 K (25°C). They are given in units

of calories (and kilocalories), kelvins (K), and moles in terms of the

1977 atomic weights (77IUPAC), rounded. 1 cal = 4.1840J.

Thermal functions for other materials, especially the elements, are

taken from the JANAF Tables (71JANAF), adapted to the liquid state for

all the temperatures above the melting point.

The temperature 298 K is to be read 298.15 K.

Some compounds (e.g., Albite, NaAlSi^Og, low* and high varieties)

exist as two or more polymorphs both of which are "stable" over wide

temperature ranges. In such cases, where the polymorphs are capable of

independent existence with overlapping temperature ranges, their values

are listed in separate tables; the form with the more negative a^G at a

particular temperature is the thermodynamically stable one. In the case

(e.g. KAlSiO^, a and 3 ) where the polymorphs are readily converted one

* low and high, here, refer in a qualitative way, to the temperature

range over which they are thermodynamically stable.

2
to the other near the transition temperature, the two forms are listed

in their separate temperature ranges on the same table (sometimes called

an equilibrium table). NaAlSiO^ has polymorphs connected by both kinds

of transformations; one table lists the a, 3 and y forms of nepheline in

an equilibrium table, another table lists a and 3 forms of carnegieite.

3
Generation of Tables

The tables are generated and printed by machine computation, with

the following inputs:

(1) for each element and compound the following thermal functions

at 100-kelvin intervals and at the transition temperatures:

(a) the relative enthalpy above 298.15 K,

(b) the relative entropy above 298.15 K, Sj’^298

compounds; absolute entropy, S^, for the elments;

(2) for each compound at 298.15 K:

(a) the standard enthalpy of formation, A^H

2 gg,

(b) the absolute entropy, $

2 gg

(in some cases this includes

a zero-point entropy which persists as a non-equilibrium

condition at all temperatures below the "glass temperature"

of the compound);

(3) for each compound, at 100-kelvin intervals and at the transition

temperatures:

(a) heat capacity Cp.

The standard enthalpy of formation listed at other temperatures is

derived from

= A^H

2 gg

+ - H298)prod " ^^^T

' ^298^react.

The standard free energy of formation listed at various temperatures

is derived from

A^G-p A^H-p — TA^S-|-

where a^S-j- = C (^^•'S

2 gg) + S

2 gg] for the product less

zSj for the elements.

The logarithm of the formation constant is given by:

-A.-G-r
Every value of the tables is rounded in the last digit.

1 .3 Use of Tables

The a^H of a reaction which involves compounds in their standard

states can be obtained by subtracting the algebraic sum of the enthalpies

of formation of the reactants from the corresponding sum for the products.

The enthalpies and Gibbs energies of formation of the elments are zero

at all temperatures.

a^H = z A^H(prod) - z A^H(react)

Analogous equations hold for a^G, a^S, and A^Cp.

At the transition temperatures of the compounds, and at the melting

points of Li, Na, K, A1 and Si, both indicated on the tables by broken

lines, there are discontinuities in their thermodynamic properties.

Interpolation of values of compounds should not cross these boundaries.

Properties of derived reactions , however, may be interpolated

without regard for transition points or melting points of the elements

if they do not occur in the reactions as free elements.

To illustrate, consider the reaction

NaAlSiO^ (nepheline) + Si02 (quartz) NaAlSi^Og (jadeite)

The aH of this reaction at 700 K is

-724.93 (jadeite) - [-501.20 (nepheline) + (-21 7. 27) (quartz)]

= -6.46kcal

and its aG at 700 K is

-623.87 -[-436.14 + (-187.24)] = -0.49 kcal

.

The latter quantity, a negative a^G value, shows that jadeite is thermodynamically

stable at 700 K relative to NaAlSiO^ and SiO^. At 800 K, the reaction

has a a^H value of -6.51, but a a^G value of + 0.36. That is, at 800 K

(and above) jadeite is thermodynamical ly unstable with respect to nepheline

and free quartz.

5
The sidncidrd enthalpies of formation of both nepheline and jadeite

show a jump discontinuity between 900 and 1000 K due to the melting of

aluminum at 933 K. There is a change in the temperature coefficient of

the free energy of formation for the same reason, but no jump discontinuity.

Discontinuities due to change of state of the elements do not persist in

the derived reactions, if the reactions do not include the free elements,

and reaction values may be interpolated up to the transition point of

any of the compounds involved.

The values in these tables may be combined with those in the JANAF

publications (preferred) (71, 74, 78, and 81 JANAF) or those in 78R0B/HEM.

However, botn of the latter tables use the gaseous standard state for

elements above the boiling points of the elements. Thus thermodynamic

properties of compounds taken from other tables, if their values are

based on the gaseous form of the alkali element above the element's

boiling point (1620 K for Li, 1156 for Na, 1037 K for K) , must be converted

to the liquid-element basis if they are to be used with the present tables.

(1 iq .-element basis) = a^H^ (gas-element basis) +

\ap

a^G-j- (1 iq. -element basis) = a^Gj (gas-element basis) +

Avap H-j-(X) + T (S.|.(X,1) - S.|.(X,g)), where X denotes

the alkali element.

The Ay^p H^(X) is given by H^(g)-H

2

gg(c) of the "other" tables less the

Hj(l of the present tables. These conversions are required only

at temperatures above the boiling point of X. Note, also, that 78R0B/HEM's

tables are in joules and that their gas entropies contain an additional

0.109 J (0.026 cal)/K for each mol of gas, due to their use of the bar

(an SI unit; 100 kilopascals; 0.9869 atmosphere) as the standard state

pressure. The gas entropies of the elements of 78R0B/HEM should be reduced by

6
0.109 J/K‘mol to be compatible with the present values and with JANAF

values. Similarly, in order to be consistent with the present tables

and with 71 JANAF and its supplements, Gibbs energies of formation of

compounds from the elements listed in 78R0B/HEM, must be adjusted by +

0.000109*T*Av kJ where Av is the net number of gaseous molecules formed

in the formation reaction. For most cases both of these corrections

are minor.

2. Acknowledgement

The FORTRAN- IV program used to generate these tables, with fivepoint Lagrangian interpolation for thermodynamic properties when required

at temperatures not tabulated, was written by David B. Neumann of the

Chemical Thermodynamics Division.

7
LiAlSiO^

4

eucr yp t i te Hoi. wt. 126 , 006

®298 ° 8±0.2 cal/degr , MO 1 A fH298 = . 7±0 . 6 kca

1

/mo 1

Tr . pt . 130 OK

T c S'"G H-1-Ur.r, A H Log

,

p 298 298 f f ^10

deg K cal/deg

,

mo1 — kcal/Mol

298 . 27. 09 0 . 00 0 .00 -507.70 -480 . 44 352.17

2 0 0. 27.21 . 17 . 05 -507.71 -480 . 27 349 . 88

40 0 . 32. SI 8 . 79 3.06 -507.84 -471 . 09 257.39

SOO . 35.80 16 . 42 6.49 -508.47 -461 . 84 201.87

600 . 38 . 09 23.17 10.19 -508.22 -452 . 54 164.84

70 0 . 39.81 29 . 17 14 . 09 -507.85 “443 . 28 138.40

800 . 41 . 16 34 . 58 18. 14 -507.40 -434 . 09 113.59

90 0 42 . 25 39 . 49 22.31 -506.92 -424.95 103.19

iOOO. 43. 17 43 . 99 26.58 -508.95 -415.69 90 . 85

i j. 0 0 . 43 . 94 48 . 15 30 . 94 -508.35 -406 . 40 80 . 74

i200 . 43 . 47 52.00 35.31 -507.78 -397.22 72.34

1300. 44.26 55 . 58 39.71 -507 . 18 -388. 10 65 . 24

1300. 46.11 55 . 79 39.98 -506 . 91 -388. 10 65.25

1400 . 48.00 59 . 27 44 . 68 -506. 05 -378.99 59 . 16

ISOO . 49 . 89 62 . 64 49.58 -505 . 01 -369.94 53.90

1600 . 51 . 79 65 . 92 54.66 -503 . 80 -360 . 97 49.31

SOURCES: S^o„: 67PAN/UEL and S--S„oo ^ 67P AN/WEL ( 78R0B/HEM ) a H= 66BAR/ADA : Lm / \S 4./W t-/0 T

i

8
LiAlSi^O . alpha spoduMene Mol. o

^298 " 30.9±0.2 cal/deg,

wt . 186

M 0 1 A . H

T

. 090

= -730.111 . 0 kcal/Mol

T C

P q_c' ^ '^298 '^“^298 A^C LoQiqK

deg K ca 1/deg

,

MO 1 kcal/Mol

298 . 37.97 0 . 00 0 . 00 -730 . 10 -638 . 71 504 . 83

300 . 38.11 . 24 , 07 -730 . 11 -688.45 501 . 53

400 . 44 . 14 12 . 07 4.20 --730 . 34 -674 . 52 368 . 54

500 . 48 . 57 22 . 42 8 85 -731 . 03 -660 . 48 288 . 70

600 . 51 . 89 31 .58 13.88 -730 . 77 -646 . 40 235 . 45

700 . 54.43 39 . 78 19.20 -730.34 -632 . 37 197 . 43

BOO . 56 . 43 47.18 24.74 -729 . 79 -618.41 168 . 94

900 . 58.01 53 . 93 30 . 47 -729 . 19 -604 . 53 146 80 ----------

iOOO. 59 . 28 60.11 36.34 -731 . 07 -590.53 129 . 06

ii 00. 60 . 31 65.81 42.32 -730 . 32 -576 . 51 114.54

1200 61 . 14 71 09 48 . 39 -729 . 53 -562.55 102.45

SOURCES

67PAN/WEL 2VB 298

66BAR/ADA

and o-q ^ ‘^298’ 67P AN/WEL < 78R0B/HEM

)

9
LiAlSi^D beta spoduMene Mol. wt . 186.090

,

u O

V/8 = .3 cal/degr. MO 1 Af'^298

"7^3., 4+1 . 0 kcal/Mol

T C

P ^^298 '^^298 -,G

deg K cal/deg , MO 1 — kcal/Mol —

298 38.91 0 00 0 . 00 -723 . 40 -683.80 501.23

300 39 . 06 . 24 . 07 “723.41 -683.55 497 . 96

400 . 45 . 32 12 . 40 4.31 -723 . 53 -670.23 366.20

50 0 . 49 . 56 22 . 99 9.07 -724 . 10 -656.85 287.11

60 0 . 52 . 67 32 . 32 14 . 19 -723 . 76 -643 . 43 234 . 37

70 0 . 55.07 40 . 63 19.58 -723.25 -630 . 08 196.72

80 0 . 56 . 99 48.11 25.19 -722 . 65 -616.81 168.50

900 . 58 . 56 54 . 92 30.97 -721 . 99 -603.62 146.58

10 0 0 . 59 . 87 61 . 15 36 . 89 -723.82 -590 . 32 129 01

1 j. 0 0 . 60 . 99 66 . 92 42.93 -723 . 01 -577. 01 114.64

12 0 0 . 61 . 96 72 . 26 49 . 08 -722. 14 -563 . 77 102.68

1300 . 62 80 77 . 26 55 . 32 -721 . 22 -550 . 61 92 . 57

1400. 63 . 54 81 . 94 61 . 64 -720.27 -537.52 83.91

1500. 64 . 20 86 . 35 68. 03 -719.29 -524.50 76.42

1600 . 64 . 78 90 . 51 74 48 -718.28 -511.55 69 . 87

1700 . 65 . 31 94 . 45 80 . 98 -741 . 23 -498 . 45 64 . 03

SOURCES

^298' H--H 29 Q

and ^“^298

67PAN/WEL ApH29Q^ 668AR/ADA

10
peta lite Mol. wt. 612.5177

S 093 “ lil.O ± O.i cal/degr,Mol ^f^298

^ "2355.6 ±23

T C

P S--S29Q H-H29Q

deg K ca 1 /deg , MO 1 " "" K C 3 1 / fi 0 1

298. 117.20 0 . 00 0 . 00 -2335.60 -2203 . 67

30 0 . 117.60 . 70 .22 -2335 . 63 -2202 . 84

400 . 139 . 70 37 . 90 13.18 -2336 . 26 -2158 . 47

500 . 154 .60 70 70 27 . 94 -2337 . 26 -2113 87

60 0 . 165 . 30 99 . 90 43 . 96 -2336 08 -2069 . 31

700 173. 00 126 . 00 60 .90 -2334 . 37 -2024 . 98

800 . 178.40 149.50 73 . 84 -2332. 03 -1980 . 59

90 0 . 182 . 30 170 . 70 96,53 -2330 . 28 -1937 . 09

10 00 . 185 . 10 190 . 10 114 . 90 -2333 . 22 -1393 . 20

1100 . 137 ,40 207 . 80 133.50 -2330 . 98 -1849 . 27

120 0 . 189 .70 224 . 20 152.40 -2328 . 62 “1805 . 53

1300 . 192 . 40 239 . 60 171.50 -2326 20 -1762 . 19

SOURCES

S29q= SOBEN/STU• '"'''*298 and S-Sj^^g: 80BEN/STU

80BEN/STU

r C.7O

kca 1/mo 1

L 0 g 1 0 ^

1615 . 33

1604 . 77

1179 . 33

923 . 97

753 . 74

632.22

541 . 07

470 . 39

413.76

367 . 42

328 . 83

296.25

11
NaAlD,^ sodiuM aluMinaxe Mol . wt. 81.970

s. = i6.9±0.1/cal degr,«ol

‘^f^298

= -271. 7±0 .4 kcal/Mol

T C

P S-Sgyg ^“'*298 LogjoK

deg K ca 1/deg

,

MO 1 —--kcal/Mol--

29U. 17 . 61 0.00 0.00 -271.70 -256.44 187.98

30 0 , 17.66 . 11 . 03 -271 .70 -256 . 35 186 . 75

4 0 0 . 19 . 94 5.52 1 . 92 -272.47 -251 . 16 137 23

50 0 . 21 .41 10 . 14 3.99 -272.50 -245 . 82 107.45

600 . 22.53 14 . 15 6. 19 -272 44 -240 . 49 87.60

700 . 23.49 17.69 8.49 -272 . 30 -235 . 18 73.43

80 0 . 23.60 21 . 26 11.16 -271 . 85 -229.91 62.81

90 0 . 24.03 24 . 06 13.54 -271 . 73 -224 . 68 54 . 56

iOOO 24.45 26 . 62 15.96 -274. 16 -219.27 47 . 92

i i 00 . 24 37 28 . 97 18 . 43 - 273.99 -213 . 79 42 . 48

1200 . 25 . 30 31 . 15 20 . 94 -273 . 79 -208.33 37.94

1300 . 25 . 72 33. 19 23 . 49 -273.57 -202.30 34.11

1400 . 26 . 15 35 . 11 26 . 08 -273.34 -197.45 30 . 82

15 0 0. 26 . 57 36 . 93 28 . 72 -273 . 09 -192 . 04 27 . 98

1600 . 26 . 99 38.66 31 . 40 “272 . 83 -186 . 65 25.49

170 0. 27.43 40 . 31 34. 12 -272.55 -181 . 27 23.30

1800. 27 . 84 41 . 89 36 . 88 “272 . 25 -175 . 90 21 . 36

1900 . 28 . 24 43 . 40 39 . 69 -271 . 94 -170 . 56 19.62

2000 . 28 . 62 44 . 86 42 . 53 -271 . 61 -165 . 24 18. 06

SOURCES ^298 ' l^"’*'^29a 77HEM/R0B

and S-S.,,,,. : JANAF 63/3 (60CHR/CON)

cL V w

12
NaAlSiO^ nepheline Mol. wt . i42.054

S .. = 29.7+0 .3 cal/Mol A =-501 . 0±1 . 0 kca

1

/mo

1

278 f 298

Tr . p t s . a

-- 467K - ^ - 1180K - t5 “ 1522K - carnegxeite 1799 - liq

T C L 0 q , K - P 298 298 f f ^10 f

Q 6Q Cdl/U0Q^ n 0 X "KCai / nO i'*"" 298 . 26.21 0 . 00 0 00 -501 . 00 -473.61 347 . 16

300 . 26 . 37 . 16 . 05 -501 .01 -473 . 44 344 . 90

400 . 34 . 80 8.90 3.11 -501 . 82 “464 . 15 253 . 60

467. 40 . 45 14 . 72 5.63 “501 . 56 -457.86 214 . 27

467. 34.11 14 . 91 5 . 72 -501 . 48 -457.86 214 . 27

500 . 34 . 63 17.25 6 85 -501 46 “454 . 78 198.78

600 . 36.22 23 . 71 10.39 -501 . 37 -445.45 162 . 25

700 . 37.81 29 . 41 14 . 09 -501 . 20 -436 . 14 136 . 17

800 . 39.40 34 . 56 17.95 “500.95 -426.86 116.61

900 . 40 . 98 39 . 29 21 . 97 “500 . 62 -417 . 62 101.41

i 000 . 42 . 57 43.70 26 . 15 -502.75 -408.23 89 . 22

ii 00. 44 . 16 47 . 83 30 . 49 -502 18 -398.81 79 . 24

1180 . 45 43 50 . 97 34 07 -501 . 63 -391 . 32 72.48

1180 . 42 . 67 51 . 08 34 . 20 -501 . 51 -391 .31 72 . 48

1200. 42 69 51 . 80 35 . 05 -501 . 42 “389.45 70 . 93

1300 . 42 . 83 55 . 22 39 . 33 -500 . 99 -380 . 13 63 .91

1400 . 42 . 96 58 . 40 43 . 62 -500 . 59 -370 . 85 57.89

o o 43 . 09 61 . 37 47 . 92 -500 . 22 “361 . 60 52 . 69

SOURCES

^298 : 53KEL/T0D '"''"'''298 3 n

d

: 53KEL/T0D '=‘^'^298' 53KRA/NEU

13
NaAlSiG^ carnegieite Mo,l. wt . 142.054

^rjoo unknown unknown

2 / cj T / o

1 C

P S— S „

„

298 H-H29Q

deg K ca 1/deg , MO 1 -•-kcal/Mol

298 28.10 0 . 00 0 . 00

30 0 . 20.21 0 . 17 0 . 05

40 0 . 32.76 8 . 94 3.11

50 0 . 35 . 79 16 . 58 6.54

60 0 . 38.22 23 . 35 10.26

70 0 . 40 . 36 29 . 44 14 . 21

800 . 42.36 34 . 96 13.35

90 0 . 44 . 26 40 . 04 22 . 66

98 0 . 45 . 75 43.87 26.26

98 0 . 44 . 48 45 . 95 28.30

1 000 . 44 . 50 46 . 85 29 . 19

1100. 44 .61 51.10 33 . 65

1200 44 . 71 54 . 98 38. 12

13 0 0. 44 . 82 58 . 56 42 . 59

1400 . 44 . 92 61 . 39 47 . 07

1500. 45 . 03 64 . 99 51 .56

1600 . 45.14 67 . 90 56 . 07

1700 . 45 . 24 70 . 64 60 . 60

SOURCES: and S-S„oo = 53KEL/T0D 2VU 2V8

NOTE: therMod . unstable rel . to nepheline below 1525K, stable above.
NaAlSi 0 jadeite

c. 6

Mol . wt

.

203 139

3290= 21.95 1 0 . 30 ca 1/degr ,MOl

"'f'^29S

-724 .8 ± 0.9 kca i/Mo

i

T q_q ^ '^298 H-H n no<^Q L0C)j„K

de^g K cal/deg , ......... M 0 i ' KCax/nOi

29B . 38. 16 0 . 00 0 . 00 -724 . 80 -682 . 13 500.01

30 0 . 38.30 . 24 . 07 -724 . 81 -681 . 86 496 . 73

40 0. 44 . 82 12 . 21 4 . 25 -725 72 -667 . 44 364 67

SOO . 49 . 20 22.71 8.96 -725.66 -652 . 87 285 . 37

600 . 52 . 15 31 . 96 14. 04 -725.36 -638.34 232 . 52

700 . 54 . 24 40 . 16 19.36 -724 . 93 -623 . 87 194 . 78

800 . 55 . 82 47.51 24.87 -724 . 43 -609 . 47 166 . 50

900 . 55. 07 54 . 16 30.52 -723.90 -595 . 13 144 . 52

1000 . 58 09 60 . 23 36.28 -725 . 90 -580 . 67 126.90

1100 . 58 97 65 . 81 42.13 -725.28 -566 . IS 112.49

1200 . 59 . 74 70 . 98 48 . 07 -724 . 65 -551 . 75 100 . 49

URGES

53K EL/TOD , 65FUR/REI '^"'^298 and 65FUR/REI

SSKl'iA/NEU, 51KRA/NEU

15
NaAlSioO

.

iZ O deh ydr a ted analcite hol.wt . 202. 139

9 ± 0.4 ca 1/degr

,

MO 1 ^f^298

” ~">^i2.8 ± 0.5 kcal/MOl

T c

p S-S

298 '^"’^298 LogiijK

deg K cal/deg ,mo1 — -kcal/Mol

290 . 39 . 30 0 . 00 0 . 00 -712.80 -673. 09 493 . 39

30 0 . 39.41 . 24 . 07 -712.31 -672.84 490 . 17

A 0 0 . 45 . 44 11 .92 4.35 -713.62 -659.21 360 . 17

SOO . 51 . 03 22.71 9. 19 -713 . 43 -645 . 61 282 . 20

60 0 . 54 . 78 32 . 36 14 . 50 -712 . 91 -632 . 10 230 . 24

700 . 57.65 41 . 03 20 . 12 -712 . 18 -618.69 193. 16

OOO . 60 . 06 48 . 89 26.01 -711 . 29 -605.39 165 . 38

900 62.20 56 . 09 32 . 13 -710 . 30 -592.21 143 . 81

iOOO . 64 . 18 62 . 75 38 . 44 -711 . 73 -578 . 97 126 . 53

SOURCES

61KIN/WEL and 290 290 ^“^298 : 68PAN

80JOM, 68HLA/KLE

16
NaAlSi^O, : H„0 analcite Mol. wt. 238.170 CO c

"^298 = 53.7 ± 0 . 2 ca 1/deqr , MO 1 , K A = -791 4 ± O.3kcal/M0

T C

P e_q

298 H-h^9y Locljul',

deg K cal/deg , ^ T ^ _ —kca

1

M 0 i /mo 1

298. 50 . 13 0 . 00 0 . 00 -791 . 40 -738 . 60 541.41

300 . 50 . 19 . 31 . 09 -791 . 41 -738 . 27 537 83

40 0 . 55.70 15.46 5 . 37 -792 . 26 -720 . 47 393 . 65

50 0 . 62. 12 28 . 58 11.26 -792 . 09 -702 . 53 307 . 07

600 . 67.59 40 . 41 17.76 -791 . 45 -684 . 67 249 . 39

SOURCES: S: 80JOH and •• 80JOH 80JOH 2VO 2V8 f tfyy

Rewark: Adj'd froM 0 . 96 [ Na AlSi„0^

H„0 : 1 /16 < 2SiO„ H^O

] C O cl cl C

17
NaAlSi ,0,-. S b low a 1 bite Mol. wt 26 O 00 7 '

®298 "" 57±0 . 1 Oca 1/degr , MO 1 94±0.50 kcal/MO

M . pt . see high albite

T C S “ S Log . „K . P 298 298 f f ^10 f

deg K cal/deg

,

mo1 kca

1

278 . 49. 02 0 . 00 0 . 00 -940

/mo

. 94

1 —

“887 . 57 650 . 60

30 0 49.21 30 . 09 -940 . 95 “887.24 646.35

400 . 57 . 29 15 . 65 5 . 44 -941 .90 -869 . 22 474 92

50 0 62 . 76 29. 06 11.46 -941 . 81 “851 . 05 371.99

600 . 66 . 64 40 . 86 17 94 -941 . 43 “832 . 93 303.39 1 700 . 69.48 51 . 36 24 . 76 “940 . 88 -814.89 254 . 42

80 0 . 71.63 60 . 73 31 .82 -940 .22 -796.94 217.71 '

900 . 73.30 69 . 32 39 . 07 “939.52 “779 . 06 189.18

i 0 0 0 . 74 . 65 77 11 46 . 47 “941 . 32 -761 . 09 166.34

1 i 0 0 . 75 . 76 84 . 28 53 . 99 “940 . 51 -743 . 11 147 . 64

1200 . 76 . 71 90 . 92 61 . 61 “939 . 68 -725 . 20 132.08

1300 . 77 . 54 97 . 09 69.33 -938 . 83 “707.37 118.92

1400 . 78 . 31 102 . 87 77. 12 -937 . 99 “689.59 107 . 65

SOURCES: S,w,o^ 760PE/HEM and S-S„„„ : 78R0B/HEM ( 60KEL , 78HEM/KRU) CYo 278 278

77HEM/R0B

T 278

18
lAlSisOy high alblTe (analblte) Mol. wt

.

262.223

S,,^g = 54.il±0.10 cal/degr , MO 1 V^298 = . 3i±0 60 kcal/MO

1

M . pT. 1391K

T C S--S H-H „ A H Log ^ K P 298 298 f f ^10

ca 1/deg ,V1 A 1

- 0 eg K ^ M 0 1 KCal/ nOl

298 . 48.95 0 . 00 0 . 00 -938 . 31 -886 . 29 649 . 67

300 49 . 13 . 30 .10 -938 . 31 -885 96 645 42

400 . 57.29 15.63 5.44 -939 . 28 -868.40 474 . 47

SOO . 62 92 29 . 05 11.46 -939 . 13 -850 . 69 371 . 83

600 . 66 . 88 40 . 90 17 . 97 -938 . 78 -833. 02 303 . 43

70 0 . 69.72 51 . 43 24 . 80 -938 . 20 -815 . 44 254 . 59

800 . 71 . 81 60 . 88 31.88 -937 . 53 -797 . 95 217.99

900 73 .40 69 44 39 . 15 -936 . 31 -780 54 189 . 54

1000 . 74.63 77.24 46 . 55 -938 . 60 -763 . 04 166 . 76

1100. 75 . 64 84 . 40 54 07 -937 81 -745 . 52 148 . 12

1200. 76 . 49 91 . 02 61 . 68 -936 . 99 -728 . 08 132 . 60

1300 77 . 25 97 . 17 69.36 -936 . 17 -710 71 119 . 48

1391

.

79 . 90 102 . 42 76 42 -935 . 43 -694 . 95 109.19

14 0 0. 77 . 96 102 . 92 77. 12 -935 . 36 -693.39 108.24

SOURCES: S.,oo= 78R0B/HEM and S- S^„„ /3RUB/HEM(7yMEM/KRU)

4-Vw tlVy tZ.7U 68UAL, 68H0L/KLE

r idvB

19
NaAlSi-^Oj-j glass Mol. wt . 262.223

^ooo “ 6i.i9±0.S cal/degr ^«o 1 = --926.S10.7 kcal/Mol

T C./D

M. pt . i39il< Glass tewp . iOSOK

T C

P ®"^298 I‘^"I^298 l-og^yK

deg K ca 1/deg

,

MO 1 -kcal/MO 1

298

.

50 . 17 0 . 00 0 . 00 -926 so -876.59 642.56

300 . 50 . 53 . 31 . 09 -926 . 51 -876.23 638.37

400 . 58 . 88 16 . 04 5.58 -927 . 33 -859.45 469.58

50 0 . 64 . 65 29 . 84 11.78 -927.06 -842.50 368.25

60 0 . 63.61 42.00 18 . 45 -926 . 49 -825.64 300.74

700 . 71 . 47 52 , 80 25 46 -925 . 73 -808 . 89 252.54

800 . 73 . 71 62.50 32 . 72 -924 , 88 -792 . 26 216.43

900 . 75 . 69 71 . 29 40 . 20 -923.95 -775 . 73 188.37

1000. 77 . 61 79.37 47.86 -925 49 -759. 13 165.91

1100. 79 . 64 36 . 86 55.72 -924 . 34 -742.55 147.53

1200 , 81 . 91 93 . 08 63.80 "923. 06 -726 . 08 132.24

13 0 0 34 . 49 100 54 72. 11 -921 . 61 -709 . 73 119.32

1391 . 87 . 17 106.34 79.92 "920 . 12 "694 . 95 109. 19

14 0 0. 87 . 45 106 . 90 80.71 "919.96 -693 . 49 108.26

SOURCES

78R0LVHEM and ^“3298 : 79KRU/R0B

68WAL, 68HLA/KLE

20
KAIO^, potassiuM aluwinaTe Mol. wt . 98 079

^298 = ±0.20 ^f*^298

Tr . pt . 810 K

T c S“S^

P 298 298

deg K cal/deg- MO 1 --- kca 1 /mo 1 —

298. 18.20 0.00 0 . 00

3U0 . 18 . 25 0 , 12 0 . 03

400 . 20 60 5 . 72 1 . 99

SOO . 22 . 23 10 , 50 4 . 13

600 . 23 . 49 14 . 67 6 . 42

700 . 24 . 51 18.37 8 . 82

80 0 . 25 . 34 21 . 70 11 32

81 0 . 25 . 42 22.01 11.57

810 . 24 . 30 22 . 39 11.88

900 24 . 56 24 . 97 14 . 08

1 000 . 24 . 85 27 . 57 16.55

1100, 25. 14 29 . 95 19 . 05

1200 . 25.42 32 . 15 21 . 58

1300 . 25.71 34 . 20 24 . 13

1400 . 26.00 36.11 26 . 72

JURCES : S: 80BEY/FER H-H29jj^ 80BEY/FER

21
KAlSi04 kaliophilire Mol. wt . lSB.i63

SO90 “ ± 0.30 cal/degr^Mol ^f'^298

" -506.4 ± 0.5 kcal/Mol

T r . p t s . a

-- 810K - ^

- <~1800K) - liq

T C

P H-H29Q

*"°^10*^f

deg K ca 1/deg , MO 1 kcal/MO

1

298 . 28.63 0 . 00 0 . 00 -506 .40 -478.71 350 . 90

300 . 28 . 73 . 18 . 05 -506.41 -478.53 348.61

400 . 33 . 05 9 . 09 3. 16 -507. 14 -469. 10 256.31

50 0 . 35 . 98 16 . 79 6 . 62 -507. 06 -459.60 200 . 89

60 0 , 38 . 37 23.57 10.34 -506.80 -450 . 13 163.96

70 0 . 40 . 50 29 . 65 14.28 -506 . 40 -440 . 72 137.60

80 0 . 42.49 35 . 19 13.43 -505.88 -431 .37 117.84

8i 0 . 42 . 68 35.72 18.86 -505.82 -430 . 44 116.14

81 0 . 42.50 35,92 19.03 -505 . 65 -430 . 44 116.14

90 0 . 42.50 40 . 40 22.85 -505. 17 -422. 11 102.50

1000. 42.50 44 . 38 27.10 “507.26 -412.72 90.20

1100. 42 .50 48 . 93 31.35 -506 . 31 -403.29 80 . 13

1200. 42 . 50 52 . 63 35 . 60 -506 . 41 -393.89 71 . 74

1300 . 42 . SO 56 . 03 39.85 -506 . 06 -384 . 53 64 . 65

1400 . 42.50 59 . 13 44 10 -505 . 76 -375.20 58.57

1500. 42 . 50 62 . 11 48.35 -505 . 50 -365.88 53.31

1600 . 42 . 50 64 . 85 52.60 -505 . 29 -356 . 53 48.71

1700 . 42 . 50 67 . 43 56 . 85 -517 . 11 -347 . 19 44 . 63

180 0. 42 . 50 69 , 86 61.10 "516 . 92 -337 . 19 40 . 94

SOURCES

S : 53KEL/T0D ^ and S~ S ; 68PAN A 66BAR/ADA 298 298 298 f 298

22
KAlSi206 leucite Mol. wt . 218.247

S298 = 8^ ± 0.41 ca 1/clegr ; MO 1 ‘fH = • 720 .4 ± 10 1kcal/Mol

Tr . pt. 955K , M. pt. 1974K

T C

P ^ ^298 Loqi„i<

deg K ca 1/deg

,

M 0 i

"" ""“'KCa i / nO 1

298. 39.24 0 . 00 0 . 00 -720 . 40 -681 . 53 499 . 57

30 0 . 39.36 . 24 . 07 -720 . 41 -681 . 28 496 . 31

40 0 . 45. 02 12.39 4.31 -721 .23 -668 . 09 365 . 02

SOO . 49 . 44 22 . 92 9 . 04 -721 . 16 -654 . 80 236.21

60 0 . 53.26 32 . 38 14 . 18 -720 . 80 -641 . 62 233 . 71

70 0 . 57 . 06 40 . 78 19.70 -720 . 18 -628 . 39 196.19

800 . 60.63 48 . 63 25 . 59 -719 . 32 -615 . 33 168 . 10

90 0 . 64 . 13 55 . 67 31 .83 -718 . 22 -602. 12 146 . 21

9S5

.

66. 03 59.82 35 . 40 -720 , 07 -595 . 27 136 . 22

95 '3. 56 . 36 59 . 82 35 . 40 -720 . 07 -595 . 27 136 . 22

1 0 00 . 56 . 50 62 . 42 37 . 94 -719 . 89 -589 . 39 128 . 81

1100. 56 . 81 67 . 81 43 . 61 -719 . 50 -576 . 35 114.51

120 0. 57 . 13 72 . 77 49.31 -719. 15 -563 . 36 102.60

1300 . 57.44 77 . 36 55 . 04 -718 . 83 -550 . 39 92.53

1400 . 57 . 76 81 . 63 60 . 80 -718 . 54 -537 . 45 83 . 90

1500. 58.07 85 . 62 66.59 -718 . 29 -524 . 52 76 . 42

1600 . 58 . 38 89 . 38 72.41 -718 . 06 -511 .61 69.88

170 0 . 58 . 70 92 . 93 78 . 24 -741 . 88 -498 . 53 64 . 09

lOOO . 59 01 96 . 29 84.15 -741 . 57 -484 . 13 58 . 79

190 0. 59 . 33 102.54 90 . 07 -741 . 30 -475 . 69 54 . 72

20 00 . 59 . 64 102 . 54 96 . 01 -741 . 04 -455 . 62 49 . 79

SOURCES

53K EL/TOD

V u

, 78R0B/HEM '^-8298 and . 68PAN

66BAR/ADA

r L.70

23
KAlSi308 Microcline Mol. wT . 278.331

^298 ± 0.3 cal/degr , MO 1 A. f*^298 3 ± 1 . Okcal /mo 1

M . pr . see san id ine

T S

^"^298 A Log^jK

deg K cal/deg ;M o1 —kca

1

/mo 1 —

298 . 48 . 37 0 . 00 0 . 00 -948 . 30 -894 . 47 655.66

30 0 . 48 . 54 . 30 . 09 -948 . 31 -894.14 651.38

40 0 . 56 . 51 15 . 42 5.36 -949 . 31 -875 . 39 478.56

50 0 . 62 . 16 28 . 67 11.31 -949.29 -857 . 53 374 . 82

600 . 66.14 40 . 38 17 . 74 -948.98 -839 . 20 305.68

700 . 69.01 50 . 80 24 . 51 -948 48 -820 . 94 256.31

BOO . 71 . 14 60 . 16 31 . 52 -947 . 89 -802.77 219.31

90 0 . 72.8 0 68 . 64 38 . 72 -947 . 25 -734 . 66 190 . 54

1 0 0 0. 74 . 16 76 . 38 46. 07 -949 . 14 -766 . 45 167 . 51

1100. 75 . 35 83 . 51 53.54 -948 . 41 -748.22 143 . 66

1200. 76 . 47 90 . 11 61 . 14 -947.66 -730 . 05 132.96

130 0. 77.59 96 . 28 68.84 -946 . 88 -711 . 95 119.69

1400 . 78.75 102.07 76.65 -946. 07 -693 . 91 108.32

SOURCES: 760PE/HEM and S-S,,„o= 7BR(JLVHEM( 60KEL, 78HEM/KRU)

t-Vo tiVw C/o

71WAL/R0B
KAlSiSOO sanidine Mol. wt . 27B.Z32

298 55.67 ± 0.30 ca 1/degr . , MO 1 •946.4 ± i.Okcai/M

T / W

T

M. pt . 1423K ( incongr., to KAlSx^O^^ + iiq

C

P :9B

H-H.

298

A H

f

A. G L 0 g ^ K f ^10 +'

d eg K

-- -ca 1/deg ,MOl - kcal/Mo 1

298. 48 . 88 0 . 00 0 . 00 -946 . 40 -893 . 90 655 25

30 0 . 49. 05 . 30 . 09 -946 . 41 -893 . 58 650 . 97

40 0 . 57.11 15 . 59 5.42 -947 . 35 -875 . 79 473 . 51

50 0 . 62 . 68 28 . 97 11.43 -947 . 28 -857 . 90 374 . 99

600 . 66 . 59 40 . 76 17.90 -946 . 91 -840 . 05 305 . 99

70 0 69 . 42 51 . 25 24 . 71 -946 . 37 -822.28 256 . 73

800 71 . 52 60 . 66 31 76 -945 . 74 -804 . 60 219.31

900 . 73 16 69 18 39 00 -945 . 07 -787 . 00 191.11

1 0 00 . 74 . 49 76 . 96 46 . 38 “946 . 92 -769 . 29 168 . 13

110 0. 75 , 64 84 12 53.89 -946 . 17 -751 . 56 149 . 32

1200 . 76 . 68 90 . 74 61 . 51 -945 39 -733 . 90 133 . 66

1300 . 77 . 67 96 . 92 69 . 23 -944 59 -716 31 120 . 42

1400 . 78 . 68 102 . 71 77.04 ”943 78 -698 . 78 109.08

1423. 78.92 103 0 0 78 86 -943 46 -693 . 21 106.47

SUURCEG: 8.,oo^ 760PE/MEM and = 78R0B/HEM< 60KEL, 73HEM/KRU)

t-VO CTO CTO

25
KAlSi30B glass Mol. wT . 2V8 . 332

'^298 = ^2.52 ± 100 ca 1/degr , MO 1 ^f''‘298

-935.7 ±0.4 kca

1

/mo 1

Class temp . 1 213K

1 C

P ’^"'^298 LogigK^.

d (•? 2VB

g K

. 50

c

.

a

05

1/deg , MO

0.00

1 —0 . 00 —

--935

kcal/Mol“

. 70

—

-385 . 25 648 . 90

3 0 0 . 50 . 23 . 31 . 09 -935 . 71 -884 . 93 644 . 67

400 . 58 . 40 15 . 95 5 . 55 -936 . S3 -867 . 85 474 . 17

50 0. 63 . 97 29 . 62 11.69 -936.32 -850 . 69 371 . 84

60 0 . 67 . 87 41 .65 18.29 -935 . 83 -833.61 303.64

7 0 0, 70 . 66 52 . 34 oc oo C.D . ^4- -935. 16 -816.62 254 . 96

80 0 . 72 . 68 61 . 91 32 . 40 -934 41 -799 . 75 218.48

90 0 . 74 . 16 70 . 56 39 74 -933 . 63 -782 . 96 190 . 13

i 0 00 . 75 . 26 78 . 43 47.22 -935 . 39 -766 . 08 167 . 43

ii 00 . 76 . 07 85 . 65 54 . 78 -934 . 57 -749 . 18 148.85

1200 . 76 . 67 92 . 29 62.42 -933 . 77 -732.37 133.38

1300 77.12 98 . 45 70.11 -933 00 -715.62 120.31

SOURCES. 78R0B/HEM 79KRU/R0B i-/U <U70 4-70

7iWAL/R0B

t C. T O

26
KA13Si30iO<OH)2 Muscovite Mica Mol. wt . 398.308

1

I

So«o = 73.23 ± 0.15 cal/degr ,M0l = -1427.3 ±10 kcal/Mo. 298 T 298

DecoMp. teMp . 1323K

T Cp S“S293 *^"*^298 ^f*"* '-‘’^lo'^f

deg K ca 1/deg , MO 1 "*"~ “**'*** “” kca

1

/mo 1 —

298

.

77. 93 0 . 00 0 , 00 -1427 . 30 -1337 . 48 980 . 39

30 0 . 78. 2S . 48 . 14 -1427.32 -1336.92 973 . 94

4 0 0. 92 . 15 25 . 03 8.71 -1428.34 -1306 . 58 713 88

SOO . 101 . 74 46 . 63 18.43 -1427 . 97 -1276 . 17 557 . 81

600 . 108.61 65.87 28 . 97 -1427 . 07 -1245.89 453 . 81

70 0 . 113.66 S3 . 01 40 . 09 -1425 . 84 -1215 . 73 379.58

80 0 . 117.44 98 . 45 5l . 66 -1424 . 44 -1185 . 88 323 . 97

900 . 120 . 28 112.45 63 . 55 -1422.97 -1156 . 14 280 .75

lOOO . 122.41 125.24 75 . 69 -1429 . 11 -1126. 02 246 . 09

SOURCES: ^29Q' •^Ot</HEM( 76R0B/HEM, 63WEL/KIN ) and S-S^^g ^ 79KRU/R0B

(=78R0B/HEM; 64PAN ) : 64BAR , 79KRU/R0B

T tlVo

27
i A low albite-Microcline crystal solutions

T LogK

deg K kcal/Mol

5 0 0 . --946 . 54 -855 79 374 . 07

600 . -946 . 81 -837.67 305.12

70 0 . -945 . 70 -819,62 255 90

800 . -945 . 10 -801 .65 219 , 00

900 . -944 . 45 -783.76 190.32

i 000 . -946 . 31 -765 . 76 167 . 36

i i 00 . -945 . 57 -747 , 73 148 . 56

‘JOUKCES : A G: 71WAL/R0B

xs

28
c'.-'3 low a 1 b 1 te-Micr oc 1 ine crystal solutions

T a^H a^G LogK^.

deg K kc<3l/Mol

SO 0 . -944 . 34 -8S4 . 22 373 . 38

60 0 -944 . 09 -836 21 304 . 59

70 0 . -943 S7 -818.86 255 . 47

80 0 . -948 . 96 -800 . 41 218 66

70 0 . -948 . 29 -702 . 63 190 . 05

i 0 0 0 -944 . 14 -764 . 74 167 . 13

ilOO. -943 . 39 -746 . 84 148.38

SOURCES: A G: 71WAL/R0B

X s

29
<Nao ^K„_^)ftl 3:2 low a lb X te--«icr oc 1 ine crystal solutions

3

Si 30 g

T

‘f'5 LogK^

deg K kcal/«o 1

SOU . “942.96 -852.98 372 . 82

60 0 . "942 61 -834 . 97 304 . 14

7 0 0. -942 . 08 -817 . 08 255 . 10

80 0 . “941 . 4S “799 . 27 218.35

90 0 . “940 . 77 -781.53 189.78

i 0 0 0 . -942 . 60 -763.69 166 . 90

il 00 . “941 . 33 -745 . 84 148.18

BGURCE8

A G: 71UAL ROB

xs

30
A:i low a lb i te-Micr oc 1 ine crystal solutions

T LogK^

deg K kcal/Mol

500 . -942 09 -851.95 372.39

600 . -942,73 -833.95 303.77

70 0 . -941 . 19 -816 . 03 254.78

80 0 . -940 . 54 -798.20 218. 06

900 . -939 , B5 -780 . 44 189 . 52

iOOO . “941 67 -762.59 166 . 66

i too . -940 . 88 -744 . 72 147 . 96

SOURCES: A G: '/iWAL/ROB

xs

31
''^^0 1:4 high albite-sanidine crystal solutions

. 2*^0

.

T LogK^

deg K kcal/Mol

500 . -944 . 60 -856.26 374.27

600 . -944 . 23 -838 . 62 305.47

700 . -943.68 -821 . 06 256.35

80 0 . -943 . 04 -803 . 59 219 . 53

900 . -942 . 36 -786 . 19 190 . 91

1 0 0 0 . -944 . 20 -786 . 69 171 . 93

1100 . -943 . 44 -751 . 18 149.25

SOURCES: A G: 69UAL/TH0

X s

32
2=3 high albi te-sanidine crystal solutions

T LogK^

deg K kcal/Mol

500 . -942.39 -854.55 373.52

600 . -942. Oi -837.02 304.88

700 . -94i . 46 -819.56 255 . 38

SOO . -940 . 8i -802 . 20 219.15

900 . -940 . 12 -734 . 91 190 . 60

iOOO . -941 . 95 -767 .52 167.74

li 00 . -941 . 17 -750 .11 149.03

SOURCES: A G: 69WAL/TH0

xs

33
high a lb i te-san id ine crystal solutions

T LogK^

deg K kcal/Mol

S 0 0 . -940 . 71 -853.03 372.86

600 . -940.32 -835.53 304.34

70 0 . -939 . 76 -818. iO 255.42

30 0 . -939 , i

0

-800 .77 218.76

90 0 . -938 . 40 -783.52 190 . 26

iOOO. -940 . 22 -766.16 167.44

iiOO. -939 . 44 -748.80 148.77

UGUKCES: A G: 69UAL/TH0

X s

34
<Na_ _K_ _)Al_Si^O_ 4:1 high albite-sanidine crystal solutions

u . o U . w w w

T LogK^

deg K kcal/Mol

50 0 . -939.62 -851 . 76 372.30

600 . -939 . 22 -834.23 303.87

700 . -938 65 -816.77 255.01

800 . -937.98 -799.41 218.39

900 . -937 . 27 -782.12 189.92

1000 . -939 . 08 -764 . 74 167. 13

1100. -938 . 29 -747.35 148 . 48

SOURCES: A G: 69WAL/TH0

xs

35
Element 02

Ref . State

,

Mol. wt . 31.9988

JANAF Tables(77/3)

T S ”-«298

degK cal/K «ol kca

1

/mo

1

0 . 00 0 . 000 -2.075

100.00 41.395 -1 . 381

200 00 46.218 -0 . 685

298.15 49.005 0 . 000

300.00 49 . 049 . 013

400.00 51 . 090 . 723

500.00 52.721 1 . 454

600.00 54 . 097 2.209

700.00 55.296 2.987

800.00 56.360 3 785

900.00 57.319 4.599

1000.00 58 . 190 5.426

1100.00 58.990 6.265

1200 . 00 59 728 7. 113

1300 . 00 60 . 413 7.969

1400 . 00 61 . 053 8 833

1500 00 61 . 653 9.703

1600 . 00 62 . 219 10 . 580

1700 . 00 62.754 11 . 462

1800 . 00 63.262 12 . 350

1900 . 00 63.745 13 . 244

2000. 00 64 . 206 14 . 143

36
EleMent H2 Mol. wt . 2.0158

Ref. State, JANAF Tables<6i/3)

T S ^ *^298

degK cal/K Mol kca

1

/mo 1

0 . 00 0 . 000 “2. 024

100.00 24.387 -1 265

200 00 28.520 -0 . 662

2V8. 15 31 .208 0 . 000

300.00 31 .251 . 013

400.00 33.247 . 707

500.00 34.806 1 . 406

6 (J 0 0 0 36. 082 2. 106

700 . 00 37.165 2.808

800 . 00 38 .107 3.514

900.00 38.946 4.226

1000.00 39.702 4 . 944

1100.00 40 . 394 5.670

1200 . 00 41 . 033 6.404

1300 00 41.628 7. 148

1400.00 42. 187 7 902

1500.00 42.716 8.668

1600 . 00 43 . 217 9,446

1700 . 00 43 695 10 . 233

1800 . 00 44 . 150 11 030

1900 . 00 44.586 11 . 836

2000 . 00 45 . 004 12.651

37
Elefient Si At. wt . 28.0855

Ref. State, JANAF Tab ies ( 67/3 ) H. pt. 1685K

T S

clegK cal/l< Mol kca

1

/mo

1

0.00 0 . 000 -0 . 769

1 0 0 0 0 . 916 --0 . 705

200 . 00 2.788 -0 . 424

298.15 4 . 498 0 , 000

300.00 4.528 . 009

400,00 5 . 983 . 516

500.00 7.197 1 . 060

600.00 8.231 1 . 628

700 . 00 9 . 133 2.213

800 . 00 9 . 933 2.313

900.00 10 . 655 3 . 425

1000.00 11 .312 4 . 049

1100 00 11 . 917 4.684

1200 . 00 12 . 478 5 . 329

1300 . 00 13.002 5.984

1400.00 13.495 6.649

1500 . 00 13 . 961 7 . 324

1600 . 00 14 403 8. 009

1605 . 00 14 . 760 8 . 600

1685 . 1700 . 1800 . 1900 . 20 00 .

00 21.883 20 . 600

00 21 .941 20 . 697

00 22.313 21 . 347

00 22.664 21 . 997

00 22 . 998 22 . 647

38
Elewent A1 At. wT. 26.9815

Ref. State, JANAF Tab les < 65/12 ) M. pt. 933K

T S ^^“*^298

degK cal/K «ol kcal/Mol

0 . 00 0 . 000 -1 . 094

100.00 1.650 -0 . 983

200.00 4.572 “0 . 546

298 15 6.769 0 . 000

300.00 6.805 . Oil

400.00 8.528 . 610

500.00 9.934 1 . 241

600.00 11 . 134 1 . 900

700.00 12.190 2.585

800.00 13. 147 3.302

90 0 .00 14 . 044 4 . 064

933.00 14.333 4 . 328

933. 00 17. 077 6 . 888

1000.00 17.603 7 . 397

1100.00 18.326 a. 156

1200 . 00 18.986 8 . 915

1300.00 19.593 9 673

1400 00 20 . 156 10 . 432

1500.00 20.679 11.191

1600 00 21 . 169 11 . 950

1700 . 00 21.629 12.709

1800 . 00 22 . 063 13 467

1900 . 00 22 . 473 14 . 226

2000 . 00 22.862 14.985

39
Eiefient Li A t . wt , 6.941

Ref. State, JANAF Tables<62/6 ) M. pt. 453

Liquid retained as Ref. State above b. pt.

T S *^"^298

degK cal/K Mol kca

1

/mo 1

0 . 00 0 . 000 "i . 105

i 0 0 . 0 0 1 . 758 -0 . 986

200.00 4.742 -0 . 546

298 15 6.954 0 000

300.00 6.990 . Oil

400.00 8 774 . 632

4V;)3. 69 9.631 . 998

453.69 11 . 212 1 . 715

500.00 11 . 915 2. 050

600 . 00 13.216 2.763

700.00 14 . 294 3.463

800.00 15.218 4 . 155

900.00 16 . 032 4 . 346

1000.00 16.759 5.536

1100.00 17.415 6.224

1200 . 00 18. 013 6 912

1300.00 18.562 7.598

1400 . 00 19. 070 8.283

1500.00 19.541 3.966

1600 . 00 19 . 981 9 . 647

1700 . 00 20 . 393 10 . 326

1800 . 00 20 . 780 11 . 003

IVOO 00 21 146 11 . 680

2000.00 21 . 493 12.357

69K

i620K

.

40
Elewent Na At. wt . 22 9898

Ref. State, JANAF Tables(62/6) M. pt. 370. 98K

Liquid retained as Ref. State above b. pt. iiS6K

1 degK cal/K Mol

^^'29B

kcal/Mol

0 . 00 0 . 000 -1 . 541

iOO. 00 5.690 -1 . 221

200.00 9 . 725 - 0 . 634

298.15 12 293 0.000

300.00 12 . 340 . 012

370.98 13 . 843 . 515

370.98 15.520 1 . 137

400.00 16 . 086 1 , 356

500.00 17.741 2. 097

600.00 19 . 056 2.818

700.00 20 . 143 3.524

800.00 21 . 072 4 . 219

900 00 21 .885 4 . 909

i 0 0 0 . 0 0 22.612 5.599

1100.00 23 274 6 . 295

1200 . 00 23.884 7. 000

1300 . 00 24.462 7 . 720

1400 . 00 25. 009 8 . 459

1500 . 00 25.533 9.219

1600 . 00 26. 036 9.998

1700 . 00 26.521 10 . 797

1800 . 00 26.989 11 . 616

1900 . 00 27 . 443 12.456

2000 00 27.883 13.315

41
Elenent K At. wt. 39.0983

Ref. State, JANAF Tables( 6i/i2) M pt. 336 . 3SK

Liquid retained as Ref. State above b. pt. 1037K

1 S

degK cal/K Mol kca

1

/mo

1

0 . 00 0 . 000 -1 . 693

i 0 0 . 0 0 8.509 -1 . 279

200.00 12.785 -0.659

298.15 15.457 0 . 000

300.00 15.501 . 013

336.35 16.363 . 284

336.35 18 . 022 . 842

400.00 19.332 1 . 327

500.00 20.990 2.070

600.00 22.315 2 . 796

700.00 23.419 3.512

800.00 24.369 4.224

900 . 00 25 . 208 4 . 936

1000.00 25.967 5.657

1100.00 26.666 6.390

1200 . 00 27.320 7.142

1300 . 00 27.938 7.915

1400 . 00 28.527 8.710

1500. 00 29. 091 8.980

1600 . 00 29.632 10 . 366

1700. 00 30 . 154 11 . 227

1800 00 30 . 659 12. 110

1900 00 31 . 148 13. 015

2000 . 00 31.623 13.942

42
3. References

51KRA/NEU

53KEL/T0D

53KRA/NEU

55KIN

60CHR/C0N

60KEL

61KIN/WEL

63WEL/KIN

64BAR

64PAN

Kracek, F.C., Neuvonen, K.J., and Burley, G.; J. V<'ash. Acad.

Sci. £L 373 (1951).

Kelley, K.K. , Todd, S.S., Orr, R.L., King, E.G., and

Bonnickson, K.R., U.S. Bur. Mines, Rep. Invest. 4955

(1953).

Kracek, F.C., Neuvonen, K.J., Burley, G., and Gordon, R.J.;

Carnegie Inst. Washington, Pap. Geophys. Lab., No. 1215; also

Carnegie Inst. Washington, Yearb. ^ 69 (1953).

King. E.G.; J. Am. Chem. Soc. 77^3189 (1955).

Christensen, A.U., Conway, K.C., and Kelley, K.K; U.S. Bur.

Mines, Rep. Invest. 5565 (1960).

Kelley, K.K. ; U.S. Bur. Mines, Bull. 584 (1960).

King, E.G., and Weller, W.W.; U.S. Bur. Mines, Rep. Invest.

5855 (1961).

Weller, W.W., and King, E.G.; U.S. Bur. Mines, Rep. Invest. 6281

(1963).

Barany, R. ; U.S. Bur. Mines, Rep. Invest. 6356 (1964).

Pankratz, L.B.; U.S. Bur. Mines, Rep. Invest. 6371 (1964).

43
65FUR/REI Furakawa, G.T., and Reilly, M.L.; Chap. B7 in National Bureau of

Standards Report 8919, pp. 130, 261 (1965); Fourteenth Tech.

Summary Report on the Thermodynamic Properties of LightElement Compounds; Advanced Research Projects Agency Order No. 20.

66BAR/ADA Barany, R. , and Adami , L.H.; Bur. Mines, Rep. Invest. 6873 (1966).

67PAN/WEL Pankratz, L.B., and Weller, W.W.; U.S. Bur. Mines, Rep. Invest.

7001 (1967).

68HLA/KLE Hlabse, T. , and Kleppa, O.J.; Am. Mineral. ^ 1281 (1968).

68H0L/KLE Holm, J.L., and Kleppa, O.J.; Am. Mineral. ^ 123 (1968).

68PAN Pankratz, L.B.; U.S. Bur. Mines, Rep. Invest. 7073 (1968).

68WAL Waldbaum, D.R.; Contrib. Mineral, and Petrol. V7 71 (1968).

69WAL/TH0 Waldbaum, D.R., and Thompson, J.B., Jr.; Am. Mineral. ^ 1274 (1969).

71JANAF Stull, D.R., and H. Prophet, JANAF Thermochemical Tables,

2d Ed., Nat. Stand. Ref. Data Ser., Nat. Bur. Stand. (U.S.)

(1971) 37. Chase, M.W., J.L. Curnutt, A.T. Hu, H. Prophet,

A.N. Syverud, and L.C. Walker, - 1974 Supplement, J. Phys. 1

Chem. Ref. Data _3, 311-480 (1974). Chase, M.W., J.L. Curnutt,

H. Prophet, R.A. McDonald, A.N. Syverud, -1975 Supplement,

J. Phys. Chem. Ref. Data 4, 1-175 (1975). Chase, M.W., ~

'i Curnutt, J.L., R.A. McDonald, A.N. Syverud, J. Phys. Chem.

Ref. Data 7, 793-940 (1978). j,

j|l

44 if l| ir
71WAL/R06 Waldbaum, D.R., and Robie, R.; Z. Kristallogr., Kn stall ogeom.

,

Kristallphy., Kristallchem. m 381 (1971).

74JANAF JANAF Thermochemical Tables, 1974 Supplement (see 71JANr»F).

760PE/HEM Openshaw, R.E., Hemingway, B.S., Robie, R.A., Waldbaum, D.k.,

and Krupka, K.M.; J. Res. U.S. Geol Surv. 4 195 (1976).

76R0B/HEM Robie, R.A. , Hemingway, B.S., and Wilson, W.H.; J. Res. U.S.

Geol. Surv. 4 631 (1976).

77HEM/R0B Hemingway. B.S. , and Robie, R.A.; J. Res. U.S. Geol. Surv. 5

413 (1977).

77IUPAC Pure Appl . Chem. ^ 409 (1977).

78HEM/KRU Hemingway, B.S., Krupka, K.M., and Robie, R.A.; unpul ished

results cited as ref. 90 in 78R0B/HEM.

78oANAF JANAF Thermochemical Tables, 1978 Supplement (see 71 JANAF).

78R0B/HEM Robie, R.A., Hemingway, B.S., and Fisher, J.R.; U.S. Geol.. Surv

Surv. Bull. 1452 (U.S. Government Printing Office, 1978).

78R0B/HEM2 Robie, R.A. , Hemingway, B.S., and Wilson, W.H.; Am. Mineral.

63 109 (1978).

45
79KRU/R0B Krupka, K.M., Robie, R.A., and Hemingway, B.S.; Am. Mineral.

86 (1979).

80BEN/STU Bennington, K.O., Stuve, J.M., and Ferrante, M.J.; U.S. Bur.

Mines, Rep. Invest. 8451 (1980).

80BEY/FER Beyer, R.P., Ferrante, M.J., and Brown, R.R.; J. Chem.

Thermodyn. 1_2 985 (1980).

80J0H Johnson, 6.K. , Argonne National Laboratory, private communication

81JAI\|AF JANAF Thermochemical Tables, 1981 Supplement, to be published.

46
NBS«114A (REV. 2-nzi U.S. DEPT. Of COMM. 1. PUBLICATION OR 2. Performing Cr,?an. Report No. 3. Publicatiori Dare BIBLIOGRAPKiC DATA

REPORT NO. t

SHEET (See Instructions) 1931

4. TITLE AND SUBTITLE

"Thermodynamic Properties of Solid Alkali Aluminosilicates at Elevated I'-iperatures

5. AUTHOR(S)

Richard H. Schumm

6. PERFORMING ORGANIZATION (If joint or other than NBS, see in struction s)

NATIONAL BUNEAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON. D.C. 20234

7. Contract/Grant No.

t. Type of Report & Period Covered

9. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street. City. State, ZIP)

10. supplementary NOTES

I I Document describes a computer program; SF-185, FlPS Software Summary, is attached.

11. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a si gnificant

bibliography or literature survey, mention it here)

This report presents selected heat capacities, entropies, enthalpies,

standard enthalpies of formation, standard free energies of formation

and the equilibrium formation constants for solid sodium aluminate,

solid potassium aluminate and solid aluminosilicates of lithium, sodium,

and potassium. Values are listed in 28 tables for 17 different compositions

(13 pure compounds and their polymorphs; 4 mixtures, each in low- and

high-temperature configurations) from 298K to temperatures ranging up to

2000K.

12. KEY WORDS (S/x to twelve entries; alphabetical order; capitalize only proper names; and separate key

selected values; enthalpy; entropy; equilibrium constant of formation

of formation; Gibbs energy function; heat capacity; heat of formation;

tables

words by semicolon s)

; free energy

thermochemical

13. AVAILABILITY 14. NO. OF

[^^nlimited

PRINTED PAGES

1 1 For Official Distribution. Do Not Release to NTIS 50

Order From Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.

20402. 15. Price

[l^f^rder From National Technical Information Service (NTIS), Springfield, VA. 22161 S6 .50

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