高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (4): 351.

• 研究论文 • 上一篇    下一篇

在盐的水溶液中非电解质活度系数的研究——正己酸和正庚酸在小离子盐水溶液中的溶解度

李万杰, 谢文蕙, 黄子卿   

  1. 北京大学化学系
  • 收稿日期:1983-12-28 出版日期:1985-04-24 发布日期:1985-04-24

Studies on Activity Coefficients of Nonelectrolyte in Aqueous Salt Solutions —The Solubilities of n-Hexanoic Acid and n-Heptanoic Acid in Aqueous Solutions of Salts with Small Ions

Li Wanjie, Xie Wenhui, Huang Ziqing   

  1. Department of Chemistry, Peking University, Beijing
  • Received:1983-12-28 Online:1985-04-24 Published:1985-04-24

摘要: 本文在25℃下分别测定了正己酸和正庚酸在纯水和小离子盐水溶液中的溶解度.标出了弱酸未解离部分的活度系数fu,作出氯化锂等八种盐的lgfu~Cs图,均呈直线关系.计算并比较了乙酸等五种脂肪酸在小离子盐水溶液中的盐效应和盐析常数的各种理论值.

Abstract: The solubility of n-hexanoic acid and n-heptanoic acid at 25℃ was determined respectively in water as well as in the aqueous salt solution. The activity coefficient of the undissociated part of the weak acid fu has also been calculated,When we ploted log fu vs. Cs for eight salts, the results obtained are all straight-lines.

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