Activity coefficients and other thermodynamic characteristics of Li-LiH (LiD, LiT) binary solutions at liquid-vapor phase equilibrium

A Li-LiH-type system at liquid-vapor phase equilibrium is considered. The experimental data on vapor pressure is processed, and the approximate equations for the temperature dependence of the equilibrium constant, activity coefficients, and other thermodynamic characteristics are found. The presence of an analog of the Sieverts constant in the region of liquid hydride concentrations in solution at x a parts per thousand 1 is found for the first time. Previously unknown dependences for the Li-LiT system are obtained.