Measurements of the Solid–Liquid Equilibria in the Quaternary System NaCl–NaBr–Na2SO4–H2O at 323 K

被引：2
作者：
Shi-Hua Sang
Rui-Zhi Cui
Jia-Wen Hu
Dan Wang
机构：
[1] Chengdu University of Technology,College of Materials, Chemistry & Chemical Engineering
[2] Chengdu University of Technology,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
[3] Shijiazhuang University of Economics,College of Resources
来源：
Journal of Solution Chemistry | 2013年 / 42卷
关键词：
NaCl; NaBr; Na; SO; Solid solution; Solubility; Density;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Phase equilibria of the quaternary NaCl–NaBr–Na2SO4–H2O system at 323 K were studied by the isothermal dissolution equilibrium method. The solubilities of salts and densities of saturated solutions were determined. Solid solutions [Na(Cl, Br)] were found in the experiments. The phase diagram of the quaternary system has no invariant point, but has one univariant curve at the boundary of Na(Cl, Br) and Na2SO4 crystallization fields. The experimental results show that an increase of the NaBr concentration is accompanied by an obvious increase of the solution density and the decrease of the solubilities of NaCl and Na2SO4.
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页码：1633 / 1640
页数：7
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