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Critical Locus of Aqueous Solutions of Sodium Chloride



A A. Povodyrev, M A. Anisimov, Jan V. Sengers, W L. Marshall, Johanna Levelt Sengers


Experimental data reported in the literature indicate a strong dependence of the critical temperature of aqueous solutions of sodium chloride on salt concentration especially in the limit of pure water. Critical pressures and densities also show strong dependencies on salt concentration. We propose a new set of equations for the critical locus and compare the results with evaluations reported previously by a number of investigators. The new equations yield a better description of the experimental data from the limit of pure water to the highest salt concentration for which data are available (0.3 mass fraction of sodium chloride).
International Journal of Thermophysics


Aqueous salt solutions, critical locus, critical temperatures, sodium chloride solutions


Povodyrev, A. , Anisimov, M. , Sengers, J. , Marshall, W. and Levelt, J. (1999), Critical Locus of Aqueous Solutions of Sodium Chloride, International Journal of Thermophysics (Accessed April 15, 2024)
Created May 1, 1999, Updated June 2, 2021