液态钠-氢系统化学热力学平衡分析

Study of Chemical Thermodynamic Equilibrium of Liquid Sodium hydrogen System

从化学热力学平衡的角度出发,分析了液态钠自由面上氢分压与钠中氢浓度的关系,导出Sieverts常数与温度的定量关系,并以此分析文献中给出的Sieverts常数。同时推导出氢在钠中溶解度对温度的依赖关系。

The study of the thermodynamic equilibrium of the liquid sodium hydrogen system is carried out on the basis of chemical engineering thermodynamics. The relationship between the hydrogen partial pressure above the surface of liquid sodium and hydrogen concentration in liquid sodium is presented. The quantitative dependence of the Sieverts constant on the temperature is obtained from above. And the experimental data of the Sieverts constant from some references are analyzed. Moreover,the temperature dependence of hydrogen solubility in sodium is given, and the comparison with the experimental data is made.