Phase diagram of BaCl2-NaCl-H2O at temperatures up to 530°C and pressures up to 150 MPa
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Experimental studies of high-temperature phase equilibria in the BaCl2-NaCl-H2O made it possible to determine the conditions of heterogenization of homogeneous supercritical (SC) fluids spreading from the BaCl2-H2O binary subsystem of type 2 and to reveal the continuity of the transformation of gasliquid equilibria into equilibria of phase separation in SC environment. Comparison with the characteristics of the K2SO4-KCl-H2O system suggests that ternary systems with one volatile component formed by binary subsystems of type 2 with phase separation and of type 1 without separation have the same type of phase diagrams.
Keywordssub- and supercritical water-salt equilibria critical phenomena heterogenization of homogeneous SC fluids hydrothermal solubility phase diagrams of ternary systems
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