高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (4): 521.

• 论文 • 上一篇    下一篇

甲醇-乙醇-水-盐体系的等压气液平衡

刘文彬, 王键吉, 白同春, 王彩兰, 卢锦梭   

  1. 河南师范大学化学系, 新乡, 453002
  • 收稿日期:1991-05-15 出版日期:1992-04-24 发布日期:1992-04-24
  • 通讯作者: 刘文彬
  • 基金资助:

    国家自然科学基金

Isobaric Vapor-Liquid Equilibrium of Methanol- Ethanol-Water-Salt Systems

LIU Wen-bin, WANG Jian-ji, BAI Tong-chun, WANG Cai-lan, LU Jin-suo   

  1. Department of Chemistry, Henan Normal University, Xinxiang, 453002
  • Received:1991-05-15 Online:1992-04-24 Published:1992-04-24

摘要: 木文采用CPⅡ型沸点仪测定了在93.33kPa下甲醇-乙醇-水-盐(NaCl,NaBr,Nal,LiCl,CaCl2)体系的气液平衡数据。实验证明,当三元混合溶剂的相对组成固定时,体系的沸点与加入的盐量呈线性关系,用热力学理论导出了该线性方程,用Gibbs相律探讨了该线性关系的起因。

关键词: 混合溶剂, 盐效应, 依数性, 线性关系

Abstract: The vapor-liquid equilibrium data of methanol-ethanol-water-NaCl, NaBr, Nal, LiCl and CaCl2 were measured with the CP Iebulliometer at 93.33 kPa.We find a linear relationship between the boiling temperature and the mole fraction of the salt added when the relative composition of the ternary solvent is fixed.Also, a linear equation for the equilibrium was derived by using the thermodynamical theory and the origination of the linear relationship was discussed with Gibbs phase rule.

Key words: Mixed solvent, Salt effect, Colligative property, Linear relationship

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