Lithium hydride solubility in molten chlorides

By means of thermal analysis, the solubility of lithium hydride in lithium chloride-potassium chloride was investigated. It was shown that the ternary LiH-LiCl-KCl exhibits one eutectic composition with a melting point of 341±3°C for a composition close to 10-60-30at%. In addition, it was observed that the LiH-KH system probably exhibits an eutectic composition with a melting point of 612±5°C for a composition close to 62-48at% LiH. The liquidus curve was determined for the whole composition range of the ternary LiH-LiCl-KCl system.