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Measurements of solid-liquid equilibria in the ternary system NaCl-NaBr-H2O at 373 K

  • Chemical Thermodynamics and Thermochemistry
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Abstract

Solid-liquid equilibria in the ternary system NaCl-NaBr-H2O at 373 K were measured by the isothermal dissolution equilibrium method. The solubilities of salts and densities of saturated solutions in the ternary system were determined experimentally. The equilibrium solid phases were also determined by chemical analysis and X-ray powder diffraction. Using the experimental data, the phase diagram of the ternary system was obtained, which comprise one univariant curve and one stationary phase in crystallization filed of Na (Cl, Br). The ternary system was solid solution type. Density values in the equilibrium solution increase with an increase of the sodium bromide concentration while decrease with an increase of the sodium chloride concentration. The relationship equation of equilibrium liquid phase and the solid phase composition data were fitted with a regression equation.

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Authors and Affiliations

  1. College of Materials Chemistry and Chemical Engineering and Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu University of Technology, Chengdu, 610059, P. R. China

    Shihua Sang, Yongxia Hu, Ruizhi Cui, Juanxin Hu & Yuan Wang

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  1. Shihua Sang
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  2. Yongxia Hu
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  3. Ruizhi Cui
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  4. Juanxin Hu
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  5. Yuan Wang
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Correspondence to Shihua Sang.

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Sang, S., Hu, Y., Cui, R. et al. Measurements of solid-liquid equilibria in the ternary system NaCl-NaBr-H2O at 373 K. Russ. J. Phys. Chem. 89, 1152–1157 (2015). https://doi.org/10.1134/S0036024415070298

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  • DOI: https://doi.org/10.1134/S0036024415070298

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