Investigation of the United stable tetrahedron LiF-KBr-K2MoO4-KF of the quaternary reciprocal system Li,K‖F,Br,MoO4

The united stable tetrahedron LiF-KBr-K2MoO4-KF of the quaternary reciprocal system Li,K‖F,Br,MoO4 was studied by differential thermal analysis. The melting points and ternary eutectic and peritectic compositions in the secant triangle LiF-KBr-K3FMoO4 were identified. The melting points of the samples corresponding to the quaternary invariant equilibrium points (eutectic and peritectic points) and their compositions in the stable tetrahedron LiF-KBr-K3FMoO4-KF were determined. The volumes of crystallizing phases in the united stable tetrahedron were determined; the phase equilibria at invariant points were described.