高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (8): 859.

• 研究论文 • 上一篇    下一篇

溶液盐效应的气液色谱研究

白同春, 卢锦梭, 周西顺   

  1. 河南师范大学化学系
  • 收稿日期:1988-11-10 出版日期:1990-08-24 发布日期:1990-08-24
  • 通讯作者: 白同春

Studies on Salt Effect in Solution by Gas-Liquid Chromatdgrapby

Bai Tongchun, Lu Jinsuo, Zhou Xishun   

  1. Department of Chemistry, Henan Normal University, Xiaxiang
  • Received:1988-11-10 Online:1990-08-24 Published:1990-08-24

摘要: 本文将气液色谱法用于测定环丁砜含盐溶液中以烃、芳烃、氯代烃、醇和酮为溶质的盐效应常数,结果表明,大多数溶质的盐效应关系可用Setschenow方程描述;负离子的性质对盐效应的影响比正离子更重要;负离子的电子向氯代烃中氯原子3d空轨道的迁移作用对其k_s的影响很大。

关键词: 盐效应, 气液色谱, 非水溶液, 环丁砜

Abstract: Gas-liquid chromatography was developed to measure the salt effect coefficients (ks) of some solutes, such as hydrocarbons, aromatic-hydrocarbons, chloro-hydrocarbons, alcohols and ke-tones, in salt-containing solutions of sulfolane at 333.15 K. The experimental results show that the salt effect relationship for the most of solutes can be presented by Setschenow's equation; the properties of anions in the solution play a more important role for salt effect than those of cations; the charge transfer interaction of electrons from anions to 3d unoccupied orbitals of Cl in chloro-hydrocarbons has a notable impact on ks. Furthermore, the dependance of ks, on the alcohol structure at the absence of the alcohol self- association, and the difference of s between ketones and alcohols'are also investigated.

Key words: Salt effect, Gas-liquid chromatography, Nonaqueous solution, Sulfolane

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