Phase Equilibria in the LiF–KCl–KBr–LiKCrO4 Stable Tetrahedron of the Quinary Reciprocal System Li+,K+||F–,Cl–,Br–,\({\text{CrO}}_{4}^{{2 - }}\)

Abstract

We have studied the LiF–KCl–KBr–LiKCrO₄ stable tetrahedron of the quinary reciprocal system Li⁺,K⁺||F^–,Cl^–,Br^–,\({\text{CrO}}_{4}^{{2 - }}\). According to experimental data obtained by differential thermal analysis, three solid phases crystallize in the stable tetrahedron: LiF, LiKCrO₄, and a continuous series of KCl_xBr_1–x solid solutions. The solid solutions are stable, and there are no invariant equilibrium points.