硫化鉱製錬に關する基礎的研究 (第8報)

固態硫化第一錫の水素に依る還元平衡について

抄録

The equilibrium in the reduction of solid stannous sulphide by hydrogen gas has been measured with the aid of flow method and the equilibrium constants have been determined for the temperature range of 533-679°C.
The effect of temperature upon the equilibrium constant and the standard free energy change in the reaction has been established as a function of temperature. The experimental results obtained are summarized by the equations as follows:_??_
By combining the above equations with the known ones as to hydrogen sulphide, the following equations have been obtained with regard to the dissociation of solid stannous sulphide._??_
And also using these values the heat and standard free energy change for the formation of solid stannous sulphide from the elements at room temperature have been calculated:_??_