Equilibria in the ternary system SrCl2-KCl-H2O and the quaternary system SrCl2-KCl-NaCl-H2O at 323 K

Abstract

The experimental studies on phase equilibria in the ternary system SrCl2-NaCl-H2O and the quaternary system SrCl2-KCl-NaCl-H2O at 323 K were done by the method of isothermal solution saturation. Solubilities and densities of the solution were determined experimentally. The phase diagrams and density-composition diagrams were plotted based on the experimental data. The phase diagram of the ternary system SrCl2-KCl-H2O at 323 K consists of one invariant point, two univariant curves, and two crystallization regions (SrCl2 · 6H2O and KCl). The phase diagrams of the quaternary system SrCl2-KCl-NaCl-H2O at 323 K consist of one invariant point, three univariant curves, and three crystallization regions (SrCl2 · 6H2O, NaCl, and KCl). A brief discussion of the experimental results is described.