Phase Equilibria of Quaternary System NaCl-NaBr-Na2B4O7-H2O at 348 K

doi:10.1007/s40242-013-2242-4

高等学校化学研究 ›› 2013, Vol. 29 ›› Issue (2): 311-313.doi: 10.1007/s40242-013-2242-4

Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K

LI Ting^1,2, SANG Shi-hua^1,2, CUI Rui-zhi^1,2, ZHANG Kai-jie^1,2

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

收稿日期:2012-06-20 修回日期:2012-07-13 出版日期:2013-04-01 发布日期:2013-03-20
通讯作者: SANG Shi-hua E-mail:sangsh@cdut.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China(No.40973047), the Specialized Research Fund for the Doctoral Program of Higher Education of China(No. 20125122110015) and the Youth Science Foundation of Sichuan Province in China(No.08ZQ026-017).

Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K

LI Ting^1,2, SANG Shi-hua^1,2, CUI Rui-zhi^1,2, ZHANG Kai-jie^1,2

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

Received:2012-06-20 Revised:2012-07-13 Online:2013-04-01 Published:2013-03-20
Supported by:
Supported by the National Natural Science Foundation of China(No.40973047), the Specialized Research Fund for the Doctoral Program of Higher Education of China(No. 20125122110015) and the Youth Science Foundation of Sichuan Province in China(No.08ZQ026-017).

摘要/Abstract

摘要：

The phase equilibria of quaternary system NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K were studied by the isothermal equilibrium method. The solubilities and densities of the equilibrium solution were determined. According to the experimental data, the phase diagram, density-composition diagrams and water content diagram of the quaternary system at 348 K were plotted respectively. And the phase diagram consists of one univariant curve, two crystallization fields and without any invariant point of the quaternary system. The equilibrium solid phases of the two crysta- llization fields were Na(Cl, Br) and Na₂B₄O₇·5H₂O. The experimental results show that the quaternary system contained solid solution. The densities of the solution decrease with increasing NaCl concentration and increase with increasing NaBr concentration.

关键词: Solid solution, Phase equilibrium, Solubility, Salt-water system

Abstract:

Key words: Solid solution, Phase equilibrium, Solubility, Salt-water system

LI Ting, SANG Shi-hua, CUI Rui-zhi, ZHANG Kai-jie. Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K[J]. 高等学校化学研究, 2013, 29(2): 311-313.

LI Ting, SANG Shi-hua, CUI Rui-zhi, ZHANG Kai-jie. Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K[J]. Chemical Research in Chinese Universities, 2013, 29(2): 311-313.

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Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K

Phase Equilibria of Quaternary System NaCl-NaBr-Na₂B₄O₇-H₂O at 348 K

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