Phase equilibria in the Na,K,Mg,Ca‖SO4,Cl-H2O system at 50°C in the anhydrite crystallization region

Phase equilibria at invariant points of the Na,K,Mg,Ca‖SO4,Cl-H2O system at 50°C in the anhydrite (CaSO4) crystallization region were studied. Anhydrite as an equilibrium phase at the six-component level is involved in formation of 22 invariant points, 58 monovariant curves, and 49 divariant fields. A fragment of an equilibrium phase diagram of the title system was constructed in the anhydrite crystallization region at 50°C.