物理化学学报 >> 2002, Vol. 18 >> Issue (09): 835-837.doi: 10.3866/PKU.WHXB20020914

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Li＋,Na＋∥,CO32－,B4O72－-H2O 四元交互体系288 K的相平衡

桑世华;殷辉安;唐明林;张允湘   

  1. 四川大学化工学院，成都　610064; 成都理工大学应用化学系，成都　610059
  • 收稿日期:2001-12-05 修回日期:2002-03-20 发布日期:2002-09-15
  • 通讯作者: 桑世华 E-mail:cditch@sina.com.cn

Equilibrium Phase Diagram of Li＋,Na＋∥,CO32－,B4O72－-H2O Quaternary System at 288 K

Sang Shi-Hua;Yin Hui-An;Tang Ming-Lin;Zhang Yun-Xiang   

  1. Institute of Chemical Engineering, Sichuan University, Chengdu　610064;Department of Applied Chemistry, Chengdu
  • Received:2001-12-05 Revised:2002-03-20 Published:2002-09-15
  • Contact: Sang Shi-Hua E-mail:cditch@sina.com.cn

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摘要： 采用等温溶解平衡法对Li＋,Na＋∥,CO32－,B4O72－-H2O四元体系进行288 K相平衡研究.结果表明,该体系属简单共饱型，在288 K等温溶解度相图中有二个共饱点，五条单变量曲线，平衡固相为Na2CO3•10H2O， Li2B4O7•3H2O，Na2B4O7•10H2O, Li2CO3.

关键词: 水盐体系, 相平衡, 硼酸盐

Abstract: In this paper, the solubility of Li＋,Na＋∥,CO32－,B4O72－-H2O quaternary system at 288 K has been determined by isothermal equilibrium method. Based on the solubility data, the phase diagram of the system has also been plotted, in which there are two invariant point E and F(see Fig.1)， five univariant curves E1F, E2F, E3E, E4E and EF, and four crystallization fields: Na2CO3•10H2O，Li2B4O7•3H2O，Na2B4O7•10H2O, Li2CO3.

Key words: Salt-water system, Phase equilibrium, Borate