Phase Equilibria in the Quinary Li, Na, K, Sr//Cl–H2O System at 25°C

The results of determination of phase equilibria and construction of total phase equilibria diagram for the quinary Li, Na, K, Sr//Cl–H 2 O system at 25°C by means of translation method have been discussed. Two points saturated with four solid phases, seven curves saturated with three solid phases, and nine fields saturated with two different solid phases have been determined on the quinary level of the system. The total phase equilibria diagram has been fragmented into divariant co-crystallization fields of two different solid phases and into projection of crystallization volumes of individual solid phases in equilibrium. Each of the volumes reflects the qualitative composition and reciprocal relation of geometrical figures of phase diagrams of system saturated with a relevant solid phase. The volumes demonstrate that each of LiCl ⋅ H 2 O and SrCl 2 ⋅ 6H 2 O solid phases saturate one point, three curves and three fields while each of NaCl, SrCl 2 ⋅ 2H 2 O and KCl solid phases saturate two points, five curves and four fields in the quinary Li, Na, K, Sr//Cl–H 2 O system at 25°C.