硫化鑛製錬に關する基礎的研究(第13報) : 固態三硫化アンチモンの水素に依る還元平衡に就いて

概要

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Measurements of the equilibrium in the reduction of solid antimony trisulphide by hydrogen were carried out by the flow method. The effect of temperature on the equilibrium constant and the standard free energy change for the reaction were determined in the experimental temperature range from 294° to 390℃ as follows : [chemical formula] By combining these equations with the known ones for hydrogen sulphide gas, the dissociation pressure and the standard free energy change in the dissociation of solid antimony trisulphide were expressed as a function of temperature by the following equations : [chemical formula] Using these results and other thermodynamical values, the heat change and the standard free energy change of formation of solid antimony trisulphide were estimated to be -68,140 and -58,350 cal respectively. And comparing these values with the published ones, some theoretical considerations were made.
東北大学の論文
1952-09-10