bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hydrocarbon Conversion with Special Reference to the Thermodynamical Calculations for the Isomerization Reactions. II
Authors: Hamal Senzo 
Published: July 2006

Abstract
(1) For the discussion of the general trend of isomerization reactions of unsaturated hydrocarbons, the free energy equations as a function of temperature, convenient for practical calculations, are derived, based on some of the more recent data available.
(2) With the aid of these simple free energy equations, ΔF’s at 0°, 25°, 100°, 200° and 300°C. are computed and tabulated.
(3) Some correlations in connection with these thermodynamical calculations for isomerization reactions are presented.
(4) In general, isomerization reactions of hydrocarbons with a few exceptions are favoured thermodynamically at a lower temperature, as found in the case of saturated hydrocarbons.
(5) As we have already stated in the case of saturated hydrocarbons, isomerization reactions from those of simpler structure to the more complicated and branched are favoured thermodynamically, more or less, at a lower temperature.
(6) As in the case of saturated hydrocarbons, the conclusion given by Rossini that isomeric form is more stable than the normal form is also found to be reasonable, as far as our calculation indicates.
Studies on the Equilibrium between the Dilute Solution and Solute Vapour. II
Authors: Uhara Ituro 
Published: July 2006

Abstract
(1) Various factors affecting condensation coefficient of solute vapour on the liquid surface of solvents (chiefly α of I2) were studied.
(2) α has no parallelism with many physical quantities of solvents (surface tension, solubility etc.).
(3) Effects of addition of electrolytes, surface active non-electrolytes, reactable substances were discussed.
(4) α decreases with rising temperature.
Hydrogenation and Polymerisation Reactions of Acetylene. III. Kinetics of Polymerisation by Use of the Thermal Separation Column. I
Authors: Kimura Osamu , Hirota Kozo 
Published: July 2006

Abstract
(1) In order to investigate the kinetics of the polymerisation reaction of acetylene, a thermal separation column has been used as reaction vessel, and the superiority of this device has been stressed, both theoretically and experimentally.
(2) The results of experiment have shown that the reaction is of second order, and that the apparent activation energy is 44.8 kcal.
Studies on Synthetic Fibers (I). Decomposition and Synthesis of “Nylon”
Authors: Hosino Kôhei 
Published: July 2006

Abstract
(1) “Nylon” yields hexamethylene diamine hydrochloride and adipic acid upon hydrolysis with hydrochloric acid, so it is proved to be polyhexamethylene adipamide.
(2) Superpolyamide was synthesized from adipic acid and hexamethylene and an excellent synthetic fiber was spun from this polymer.
The Quantum Mechanical Treatment of Viscosity by Use of the Rigid Elastic Sphere Model. II. The Sutherland Constant
Authors: Hirota Kozo 
Published: July 2006

Abstract
1) According to the conclusion of the previous paper, the “Sutherland constant” in the viscosity coefficient for various substances has been calculated quantum-mechanically by a simple procedure.
2) The Sutherland constant C0 thus calculated has been found to obey Rankin’s and Vogel’s rules even in the substances of low molecular weight.
3) The disagreement in the Debye’s formula between electric moment and Sutherland constant has been shown to disappear if C0 was used instead of the classically determined Sutherland constant.
A SIMPLE PROCEDURE OF SEMI-QUANTITATTVE SPECTRAL ANALYSIS OF CALCIUM, STRONTIUM, BARIUM AND LITHIUM
Authors: Hukuda Kunizô 
Published: July 2006

Abstract
1. A simple procedure of the semi-quantitative spectral analysis has been described.
2. This procedure consists in observing salt solutions fulgurated in a special fulgurator, with the electrodes reversed, i. e. the anode in the solution.
3. Accuracy and limit of application of this method were carefully studied and it was found that this is especially suited for the analysis of minute quantities of lithium, calcium, strontium and barium.
ON THE OXIDATION OF THE MIXTURE OF STANNOUS CHLORIDE AND SODIUM SULPHITE IN ALKALINE SOLUTION WITH AIR
Authors: Miyamoto Susumu 
Published: July 2006

Abstract
1. The oxidation velocity of the mixture of sodium sulphite and stannous chloride in alkaline solution with air was studied.
2. When the initial concentration of stannous chloride is not small, the oxidation velocity is independent of their concentrations and is smaller than that of each.
3. When the initial concentration of stannous chloride is small, the oxidation of the mixture takes place at a slow rate first, and increases with time.
THE VISCOSITY OF LIQUIDS ABOVE THEIR BOILING POINTS. PART. III
Authors: Titani Toshizo 
Published: July 2006

Abstract
1. The volume relation of molecular or specific fluidity holds good even when the viscosity changes remarkably with pressure.
2. The volume and temperature relations give results which agree well with each other in all respects.
3. From the two sorts of relations concerning the viscosity, the following equation was obtained,
(Remark: Graphics omitted.)
\oindentwhich was found to hold with good accuracy.
ON THE SO-CALLED DIETHYL DICYANOGLUTACONATE AND SOME OF ITS DERIVATIVES
Authors: Urushibara Yoshiyuki 
Published: July 2006

Abstract
1. The so-called diethyl dicyanoglutaconate has the composition (C11H12O4N2)2H2O and the constitution is considered to be represented by the formula (C10H12O4N)–CO–NH–C(NH)–(C10H12O4N).
2. The diethyl sodiodicyanoglutaconate is colourless when pure.
3. By the action of bromine on the so-called diethyl dicyanoglutaconate an addition product is obtained, which has the composition (C11H12O4N2)2·H2O·HBr·Br6. This is changed into the diamide hydrobromide, C11H16O6N2·HBr, in ether containing water.
4. The picrate of the diamide, C11H16O6N2·C6H2(NO2)3OH, is obtained from the diamide hydrobromide, from the bromine addition compound, and from the so-called diethyl dicyanoglutaconate. These three compounds are all changeable into the diethyl dihydroxydinicotinate.
SPECTROCHEMICAL STUDIES OF HYDROXYAZO-COMPOUNDS. PART III
Authors: Uemura Taku , Yokojima Naomichi , Endo Tamimatsu 
Published: July 2006

Abstract
1. Tautomeric transpositions may take place in these hydroxyazo-compounds by the addition of a potassium hydroxide solution, with an accompanying change in colour.
2. We can respectively assign A(azo)-, R(red)-, and B(blue)-forms to these tautomers. (Sometimes we recognise more readily the mixture of these forms.)
3. Tautoinerism is due to the labile hydrogen atoms in hydroxyl-groups which take the ortho- or para-position with respect to the azo-group.
4. The hydrogen atom which is in the meta hydroxyl-group with regard to the azo-group does not only move by itself, but moreover hinders the transposition of the other hydrogen atoms.
5. When there are many labile hydrogen atoms, mutual hindrance may occur.
6. B-form is sometimes produced only when there is a para nitroradical with regard to the azo-group.
7. Nitro-groups which take the ortho- or meta-position with respect to the azo-group do not change into the isonitro-structure.
8. The nitro-group has considerable bathochromic influence upon these hydroxyazo-compounds.
9. Generally only one absorption band exists in the solutions, of these substances, but there are two bands when methyl-group is included.
THE PHOTOCHEMICAL REACTIONS OF COLOURING MATTERS. I. THE REVERSIBLE PHOTOCHEMICAL REACTION OF MALACHITE GREEN
Authors: Ariga Teru 
Published: July 2006

Abstract
1. The photochemical reversible reaction of the alkaline solution of malachite green was studied with the quartz-mercury-lamp, and its nature was discussed.
2. The reaction velocities were determined both in the light and the dark reaction, using Nutting’s spectro-photometer. The former is proportional to the intensity of light and the latter to the concentration of the alkali added.
3. The temperature coefficient of the reaction velocity of the light reaction was found to be unity at the interval between 25° and 35°C.
4. Equation of the reaction of first order was derived with approximation for the light reaction.
The Extraction of Germanium and Gallium from Germanite
Authors: Saito Kazuo 
Published: July 2006

Abstract
The author has succeeded to extract germanium and gallium of satisfactory quality almost quantitatively in small scale. Germanium oxide can be refined by redistillation and hydrolysis, and the product is applicable as the standard substance for the chemical study. It is confirmed that Rothe’s extraction is a suitable method for the preparation of gallium from germanite.
The Seperation and Purification of Rare Earth Elements from Monazite (I)
Authors: Arakawa Hisaichi 
Published: July 2006

Abstract
(1) The rare earths, free from thorium, could be separated as the earths sulphate double compound (yield 93%).
(2) The method of separating thorium from the filtrate, which was obtained by separating about 63% of rare earths salt from the extracted solution, gives better result than a method of direct fractional precipitation from the extracted solution.
(3) Cerium can be separated from a solution as rare earths ammonium double compound with a purity of 92–96% (yield 70–75%).
(4) In the separation of cerium, a maximum point of purity is obtained when sufficient quantity of ammonia is added just to remove the colour of Ce ion from the solution. The purity and yield of cerium is not strictly in an inverse proportion, but a point of maximum purity of precipitate is obtained when a certain definite amount of ammonia is added.
A New Chemical Method for Measuring the Ultra-violet Ray
Authors: Miyake Yasuo 
Published: July 2006

Abstract
The author has contrived a new instrument to measure the relative intensity of the ultra-violet radiation using the leuco-base of crystal violet. A quartz glass ampule containing the leuco-base solution is exposed to light and the dyestuff thus produced is determined colorimetrically with a series of a standard solution of crystal violet contained in ampules of the same size. The method of measurement is explained.
Actinomycin J2, a By-product from a Strain of Actinomyces
Authors: Hirata Yoshimasa , Nakanishi Koji 
Published: July 2006

Abstract
The constitution of actiomycin J2 obtained from actinomyces flavus has been studied and idenified to be the dodecyl ester of 5-ketostearic acid by means of hydrolysis of the original substance, followed by the Beckmann rearrangement and hydrolysis of the oxime of 5-ketostearic acid into myristic acid, γ-aminobutyric acid and a small amount of n-tridecyl-amine. Next, the 5-ketostearic acid was synthesized according to two methods, which were concluded respectively by the hydrolysis of condensation products of the type: CH3(CH2)mC(COCH3)(COOC2H5)CO(CH2)nCOOC2H5 and CH3(CH2)n+1CO(COCH3)(COOC2H5)(CH2)n−1COOC2H5, of which the latter gave a considerable yield, while that of the former was very poor owing to the undesired direction of hydrolysis. The condensarion products of 5-ketostearic acid chloride and dodecyl alcohol showed no depression of meltihg point when mixed with actinomycin J2, thus proving the constitution of actinomycin J2 to be the dodecyl ester of 5-ketostearic acid.
These experiments were begun since it seemed that actinomycin J2was an antibiotic, but considering the fact that the synthesized specimen demonstrated no such activity, it must be conculded that the original activity was probably due to a minute amount of actinomycin J1 existing as an impurity, and that actinomycin J2 is a mere by-product.
On the Equilibrium of the Radioactive Elements in the Hydrosphere. V. A Simple Method for Distinguishing Uranium and Thorium in Radioactive Minerals
Authors: Kuroda Kazuo 
Published: July 2006

Abstract
It was found that the uranium and thorium in radioactive by measuring the radioactivity of mineral are easily distinguished radium emanation and thorium emanation in the minerals with I.M. fontactoscope.
On the Diamagnetism of Perylene. II
Authors: Hazato Genjiro 
Published: July 2006

Abstract
Applying London s theory of diamagnetic anisotropy, computations have been performed on the structure of perylene molecule. In this problem, the theory gives no definite value if we choose such a model constructed with the same, five regular hexagons as we usually do in the conventional method. Introducing a simple parameter, this difficulty is removed with the result that the relative diamagnetic anisotropy of this molecule is about twice as large as that of naphthalene, showing a good agreement with experiment. A model as a peripheral form gives a divergent result from experiment.
A New Method of the Colorimetric Determination of Small Amounts of Manganese with Silver Peroxide
Authors: Murakami Yukio 
Published: July 2006

Abstract
In face of several defects noted by the oxidation agents hitherto used in the determination of manganese by the colorimetric method a new reagent, so-called “Silver peroxide,” has been proposed. This new reagent has been found to excel other reagents in the following respects: a) easy preparation and easy decomposition of the excess reagent, b) strong oxidizing power not reduced by long standing and cheap availability for routine work, c) no noticeable interference by other reagents during action and accuracy in results obtained.
Thus by its use the procedure is exceedingly simplified and the time required is considerably less than that in the method used hitherto.
Studies on Foams. III. The Foam Formation of Some Dyestuff Solutions
Authors: Nakagaki Masayuki 
Published: July 2006

Abstract
The foam formations of the aqueous solutions of methyl violet 5B, brilliant green, malachite green, crystel violet, Hofmann’s violet and congo red have been measured. The foaming ability, that is the product of foaminess and foam strength, is considered as the measure of the foam formation. This scarcely changes by the long period’s storage of the solution. The foaming ability of them is nearly parallel with the surface activity. This is interpreted with structural formnlae of dyestuffs.
On the Equilibrium of the Radioactive Elements in the Hydrosphere. III. On the Ratio of Thorium Emanation to Radium Emanation in the Hydrosphere
Authors: Kuroda Kazuo , Yokoyama Yuji 
Published: July 2006

Abstract
The ratio of thorium emanation to radium emanation in natural waters was measured. Following three methods were used: (1) with the I. M. fontactoscope, (2) with the Lauritsen-type K. Y. fontactoscope, and (3) the indirect method, in which the radioactivity of the decay products of thorium emanation and radium emanation is measured with the Lauritsenetectroscope.
It was found that thorium emanation is considerably widely distributed in the mineral springs and hot springs of Japan.
The Diffusion of Dye Solutions
Authors: Nakagaki Masayuki 
Published: July 2006

Abstract
The apparent diffusion coefficient of congo red in water, obtained by Auerbach-Ostwald’s method, changes with concentration. Solving the Fick’s equation with the assumption that the. diffusion coefficient is a function of concentration, the apparent diffusion coefficient can be recalculated to differential diffusion coefficient. From the value extrapolated to infinite dilution, the particle radius of congo red was calculated using Einstein-Sutherland’s equation. On the assumption that the particle is spherical and not hydrated, the particle weight and association degree were obtained. The diffusion coefficient, obtained by this method for congo red solution containing various concentration of NaCl, agrees well with the data reported by others. With the increase of salt concentration, the particle size increases gradually. No decrease was observed in the particle size with a small addition of electrolyte.
A Contribution to the Equilibrium of the System of Sea Salts at 110 °C
Authors: Tanaka Yasuo , Takasago Shozo , Komatsu Takashi 
Published: July 2006

Abstract
1. The solubility of magnesium sulfate in magnesium chloride solution at 110°C has been studied with a special reference to the crystallization velocity. In this system, it seems that the formation of the nuclei of kieserite is very difficult, and, when they are once formed, further crystallization takes place smoothly.
2. In the system, NaCl-MgSO4-MgCl2-H2O, at 110 °C, it has been found that the point K lies at about Na2 17.5, Mg 63, Cl2 67 and SO4 13.5 mols per 1000 mols of H2O. The content of magnesium is much larger than what has been estimated by D’Ans, and, accordingly, the löweite field of him should be enlarged.
3. Preliminary experiment on the five component system of sea salts at 110°C has shown that langbeinite may have a larger field than expected from the diagram of D’Ans.
An Improved Method of the Colorimetric Determination of Chromium with Diphenylcarbazide
Authors: Murakami Yukio 
Published: July 2006

Abstract
The colorimetric method of determining chromium in silicate rocks with diphenylcarbazide has the defect resulting in a distinct tendency for producing slightly lower figures as recognized already. After a thorough study of the method the author pointed out the possible sources for the serious errors, especially for those which give negative results. Thus the oxidation method in an alkaline medium was proposed, which was compared with the widely used old method.
The accuracy and reproducibility of this method are not entirely satisfactory but so far it will serve as the most accurate method. The content of chromium in brown coal in Japan determined by this oxidation method with sodium peroxide will be reported in a later communication.
Effects of Hydrochloric Acid on the Paper Chromatography of Amino Acids
Authors: Ishii Shin-ichi , Ando Toshio 
Published: July 2006

Abstract
To explain what effect hydrochloric acid, contained in the sample to be analyzed, gives upon the paper chromatograms of amino acids, RF values of some amino acids dissolved in hydrochloric acid of various concentrations were observed with different kinds of solvent.
In case of n-butanol, hydrochloric acid was found to increase the RF value of each amino acid with an increase in the concentration of hydrochloric acid, while in isovalerianic acid, on the contrary, to decrease that. On the one hand, only the amino acids of lower RF values were affected by hydrochloric acid in the case of phenol. In butanol-acetic acid, on the other hand, some effect was also found, but in collidine-lutidine it was negligible. In all cases, the relation between thess effects and the diffused areas of hydrochloric acid on the chromatograms was observed with great interest.
On the Retardation of Catalysis. The Catalytic Reaction between Acetylene and Hydrogen
Authors: Tamaru Kenzi 
Published: July 2006

Abstract
(1) The retardation of hydrogenation of acetylene on the palladium-alumina (1:100) catalyst by the deposited polymers and some inorganic salts were investigated.
(2) By correcting the retardation of the polymers, which deposited on the surface of the catalyst during the reaction, it was found that the net hydrogenation rate of acetylene was expressed by the following equation,
(Remark: Graphics omitted.)
(3) It was suggested that both catalytic hydrogenations of acetylene and ethylene proceeded on a few “active regions” of the catalyst with different ratios, and taking some assumptions, the rôle of the various “active regions” on the two hydrogenations was considered.
(4) It was shown that lead acetate solution poispned the ethylene hydrogenation much more than the acetylene hydrogenation and this fact coincides with the result of the flow method.
Dispersity of Catalyst and Catalytic Activity. Catalytic Hydrogenation of Acetylene on the Pd-Kieselguhr Catalyst
Authors: Tamaru Kenzi 
Published: July 2006

Abstract
1) Hydrogenation of acetylene on the Pdkieselguhr catalyst of various dispersities was investigated.
2) It was shown that the hydrogenation of acetylene proceeded not only to ethylene, but also to ethane by all the catalysts of various dispersities, and that in two distinct steps quite similarly with the Pd-alumina (1:100) catalyst.
3) The ratio of the hydrogenation rate of acetylene to that of ethylene was affected by the dispersity, suggesting the appearance of the various “active regions” of the catalyst surface to be connected with the dispersity. It was large for the catalyst of larger dispersities and this fact explains the results previously obtained by the flow method.
4) Some considerations were given to the rate-determining step in the hydrogenation of ethylene.
Application of Cation Exchange Resin to the Determination of Phosphorus in Foods
Authors: Kubo Shohji , Tsutsumi Chuichi 
Published: July 2006

Abstract
A new volumetric determination of phosphorus in foods using a sodium type cation exchange resin was devised and critically investigated. The substitution of sodium for the hydrogen type exchanger eliminated errors resulting from the introduction of carbonate present in concentrated alkali. Moreover, the reduction of the resin particle size resulted in simplification of the procedure and reduced the skill necessary for its execution.
This method is accurate and applicable to the determination of phosphorus in ordinary foodstuffs, except when the sample contains unusually large amount of ferric iron. In such cases, the hydrogen type exchanger method must be employed.
Influence of Substituent Groups on Nuclear Reactivity in Formations of Substituted Biphenyls through Reactions of Aromatic Diazo and Cognate Compounds with Aromatic Liquids. I. The Nitro Group
Authors: Simamura Osamu , Inukai Takashi , Kanazashi Motonori 
Published: July 2006

Abstract
The reactions of both n-nitrosoacetanilide and diazobenzene hydroxide with nitrobenzene give all three isomeric nitrobiphenyls, whereas the formation of only the ortho and para isomerides has been reported in the literature. All the nuclear positions of nitrobenzene are more reactive than that of benzene towards the substituting phenyl radical.
Researches on the Polarographic Diffusion Current. I. Criticism of the Ilkoic Theory and Theoretical Revision of the Ilkovic Equation
Authors: Kambara Tomihito , Suzuki Makoto , Tachi Isamu 
Published: July 2006

Abstract
The integral equation representing the thickness of the diffusion layer surrounding a spherical electrode is derived; upon solving this equation, the formula for the polarographic diffusion current is obtained. It becomes clear that the Ilkovic theory is not right because of its ignorance of the curvature of drop and that our revised equation can elucidate many oscillographic recordings of the polarographic current-time curves.
Biochemical Studies on Vitamin B12. I∼II
Authors: Sahashi Yoshikazu , Mikata Masayuki , Sakai Heiichi 
Published: July 2006

Abstract
In part I, a simple method for isolating vitamin B12 concentrate was studied.
In part II, (A) was decided to be a prosthetic group in natural (B) molecule biochemically, and the biosynthesis of (B) from synthetic (A) could be attained successfully.
Analytical Chemistry by Means of Organic Compounds XV Electrolytic Reduction of Organic Reagents at the Dropping Mercury Cathode and its Application to Amperometric Titrations — 8-Hydroxyquinoline (2)
Authors: Ishibashi Masayoshi , Fujinaga Taitiro 
Published: July 2006

Abstract
Magnesium was directy titrated by the amperometric method. The accuracy was 0.7% or better with 10−3 m concentration of magnesium. Its application to the analysis of alloy, brine and sea-water were studied. The interference of calcium and its elimination are described.
On the Porperties of Water Surface in Contact with Various Vapors
Authors: Ikeda Toshio , Ozaki Tokurô 
Published: July 2006

Abstract
The surface tension of water in various vapors were measured by the drop-volume method. As a result of the experiment, it was found that the “ Antonoff’s rule” holds good with some exceptions. In any vapors, a remarkable, but short ageing of water surface was found, which was 6 seconds in general, and which is prolonged by reduced pressure.