高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (5): 387.

• 论文 •    下一篇

四元体系LiCl-KCl-MgCl2-H2O 25℃时等温研究

张逢星, 郭志箴, 陈佩珩, 马晋华, 陈运生   

  1. 西北大学化学系
  • 收稿日期:1985-11-07 出版日期:1987-05-24 发布日期:1987-05-24
  • 基金资助:

    中国科学院科学基金

Studies on the Quaternary System LiCl-KCl-MgCl2-H2O at 25℃

Zhang Fengxing, Guo Zhizhen, Chen Peiheng, Ma Jinhua, Chen Yunsheng   

  1. Department of Chemistry, North estern University, Xi'an
  • Received:1985-11-07 Online:1987-05-24 Published:1987-05-24

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摘要： 本文首次报道了四元体系LiCl-KCl-MgCl2-H2O 25℃时的溶度和饱和溶液的折光率、密度和粘度值。并给出了体系的相图、溶度面、总氯量面及上述物理性质面。

Abstract: The solubilities and the refraction indices, densities and viscosities of the saturated solutions in the title quaternary system have been investigated for the iirst time at 25℃.In the phase diagram there are five crystallization fields corresponding to LiCl·H2O, KCl, MgCl2·6H2O, LiCl·MgCl2·7H2O and KCl·MgCl2·CH2O, respectively. The compositions of the three invariant points are LiCl:44.08, KCl: 3.51, MgCl2:0.65%Wt. (corresponding to KCl+ LiCl·H2O+ KCl·MgCl2· 6H2O); 40.23, 0.62, 5.40 (LiCl·H2O+KCl·MgCl2·6H2O+LiCl·MgCl2·7H2O) and 26.97, 0.15, 14.62 (MgCl2·6H2O+KCl·MgCl2·6H2O+LiCl· MgCl2·7H2O). By using the measured values of the refraction index, density, viscosity, water and chloride ion-content of the saturated solutions of the system, the isograms of these properties are drawn. The iso-density curves intersect with that of the other properties except water-content in a good net form, which may be applied to monitor the isothermal evaporation process of the system quantitatively.

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