The Dissolution of Lithium in Molten Lithium Chloride

Abstract

Influence of atmosphere on the dissolution of Li in molten LiCl was studied both. yviJth sealed-type and non-sealed-type cells (Fig. 1). True (physical) solubility of Li .could .be measure by using the sealed-type cell, It was O.66 mol% at 662"C. On the other hand, the amount of Li dissolved increased with time when non-sealed-type cell was used (Fig. 4), this was due to the effect of 02, N2 or moisture. Addition of Li20 into molten LiCl brought about a slight increase in the amount of Li dissolved (Fig. 5). These facts suggested that, in T rmaddition Yo the usual physical dissolution, there was also a possibility of colloidal. dissolution 6f Li due to the emulsifYirig action of Li20 and LisN which were produced by the reaction of Li with 02, N2, or moisture.
The conductivity data of Li-Licl system obtained with non-sealed-type cell supported this view.