Thermodynamic Study of Solid–Liquid Equilibrium in NaCl–NaBr–H2O System at 288.15 K
- Authors: Li D.1, Meng L.1,2, Deng T.2, Guo Y.2, Fu Q.1
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Affiliations:
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Marine Resources and Chemistry
- Issue: Vol 92, No 6 (2018)
- Pages: 1213-1218
- Section: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/170037
- DOI: https://doi.org/10.1134/S0036024418060043
- ID: 170037
Cite item
Abstract
The solubility data, composition of the solid solution and refractive indices of the NaCl–NaBr–H2O system at 288.15 K were studied with the isothermal equilibrium dissolution method. The solubility diagram and refractive index diagram of this system were plotted at 288.15 K. The solubility diagram consists of two crystallization zones for solid solution Na(Cl,Br) · 2H2O and Na(Cl,Br), one invariant points cosaturated with two solid solution and two univariant solubility isothermal curves. On the basis of Pitzer and Harvie-Weare (HW) chemical models, the composition equations and solubility equilibrium constant equations of the solid solutions at 288.15 K were acquired using the solubility data, the composition of solid solutions, and binary Pitzer parameters. The solubilities calculated using the new method combining the equations are in good agreement with the experimental data.
About the authors
Dan Li
School of Chemistry and Chemical Engineering
Email: menglingzong@lyu.edu.cn
China, Linyi, 276000
Ling-zong Meng
School of Chemistry and Chemical Engineering; Tianjin Key Laboratory of Marine Resources and Chemistry
Author for correspondence.
Email: menglingzong@lyu.edu.cn
China, Linyi, 276000; Tianjin, 300457
Tian-long Deng
Tianjin Key Laboratory of Marine Resources and Chemistry
Email: menglingzong@lyu.edu.cn
China, Tianjin, 300457
Ya-fei Guo
Tianjin Key Laboratory of Marine Resources and Chemistry
Email: menglingzong@lyu.edu.cn
China, Tianjin, 300457
Qing-Tao Fu
School of Chemistry and Chemical Engineering
Email: menglingzong@lyu.edu.cn
China, Linyi, 276000