高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1116.

• 研究简报 • 上一篇    下一篇

叔铵盐-烷烃-醇-水四元体系的热力学函数与结构研究

胡正水, 傅洵, 潘莹, 丁江   

  1. 青岛化工学院, 青岛, 266042
  • 收稿日期:1994-07-18 修回日期:1995-03-24 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 胡正水,男,48岁,副教授.
  • 作者简介:胡正水,男,48岁,副教授.
  • 基金资助:

    山东省自然科学基金

Studies on Thermodynamic Function and Structure Parameters of Tertiary Amine Salt-Alkane-Water Systems

HU Zheng-Shui, FU Xun, PAN Ying, DING Jiang   

  1. Qingdao Institute of Chemical Technology, Qingdao, 266042
  • Received:1994-07-18 Revised:1995-03-24 Online:1995-07-24 Published:1995-07-24

摘要: 叔铵类(R3N)萃取剂萃取金属离子需在酸性介质中进行,与无机酸先形成铵盐(属阴离子表面活性剂类),然后与金属配阴离子进行阴离子交换反应。而将R3N制成无机酸盐,作为表面活性剂以微乳液为模型对其进行热力学函数与结构研究尚未见报道。

关键词: 萃取剂, 三辛胺, N235, 叔铵盐, 热力学函数

Abstract: Four tertiary amine salts, TOA·HCl, N235·HCl, N235·HNO3, N235·HClO4were prepared and their interfacial properties were measured. Thermodynamic function of the systems of tertiary amine salt-alcohol-alkane-water was measured by the dilution method and their structure parameters were calculated by using the model of w/o microemul-sion. The results showed that the "droplet" radii Re<0.5nm. We suggest that the thermo-dynamic stable tetradic system should belong to a kind of reversed micelles contributed by the hydration of alcohol.

Key words: Extractant, Tri-n-octyl amine, N235, Tertiary amine salt, Thermodymanic function

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