The phase and density diagrams of the systems MgCl2-MgB4O7-H2O and KCl-K2B4O7-H2O at 273 K

被引：8
|
作者：
Zhao, Xiang-Po [1 ]
Zhang, Xue-Ping [1 ]
Sang, Shi-Hua [1 ,2 ]
机构：
[1] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Sichuan, Peoples R China
[2] Sichuan Higher Educ Inst, Mineral Resources Chem Key Lab, Chengdu 610059, Sichuan, Peoples R China
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2017年 / 91卷 / 10期
基金：
中国国家自然科学基金;
关键词：
phase equilibrium; solubility; magnesium chloride; magnesium borate; potassium chloride; potassium borate;
D O I：
10.1134/S0036024417100417
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The method of isothermal dissolution was used to study the solubilities and the densities of the two systems MgCl2-MgB4O7-H2O and KCl-K2B4O7-H2O at 273 K. By the X-ray diffraction the equilibrium solids were determined. The phase diagrams and density versus composition diagrams of the systems MgCl2-MgB4O7-H2O and KCl-K2B4O7-H2O at 273 K were plotted. The both diagrams are consisted of one invariant, two stable solubility isothermal curves and two crystallization fields. The crystallization fields for the system MgCl2-MgB4O7-H2O corresponds to MgB4O7 center dot 9H(2)O and MgCl2 center dot 6H(2)O. Those for the system KCl-K2B4O7-H2O corresponds to K2B4O7 center dot 4H(2)O and KCl.
引用
收藏
页码：1932 / 1938
页数：7
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