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Russian Journal of Physical Chemistry B

, Volume 5, Issue 7, pp 1173–1188 | Cite as

Phase diagram of BaCl2-NaCl-H2O at temperatures up to 530°C and pressures up to 150 MPa

  • M. A. Urusova
  • S. V. Makaev
  • E. V. Maleeva
  • N. S. Ivanova
  • V. M. Valyashko
Article

Abstract

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.

Keywords

sub- and supercritical water-salt equilibria critical phenomena heterogenization of homogeneous SC fluids hydrothermal solubility phase diagrams of ternary systems 

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Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  • M. A. Urusova
    • 1
  • S. V. Makaev
    • 1
  • E. V. Maleeva
    • 1
  • N. S. Ivanova
    • 1
  • V. M. Valyashko
    • 1
  1. 1.Kurnakov Institute of General and Inorganic ChemistryRussian Academy of SciencesMoscowRussia

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