Measurements of Conductivity for Strong-Electrolytes in Organic Solvents at Low Concentration. 1. LiBr, LiCl, and LiNO3 in Alcohols

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Measurements of Conductivity for Strong-Electrolytes in Organic Solvents at Low Concentration. 1. LiBr, LiCl, and LiNO3 in Alcohols

陈红¹,王利生²,姜波³,李弥异¹

1.
2. 北京理工大学化工系化工原理教研室
3. 北京理工大学化工与环境学院

收稿日期:2011-05-27 修回日期:2012-03-21 发布日期:2012-07-06
通讯作者: 姜波

低浓度下强电解质在有机溶剂中的电导率的测定.1.LiBr, LiCl和 LiNO3在醇类中

Received:2011-05-27 Revised:2012-03-21 Published:2012-07-06

摘要/Abstract

摘要： 使用电导率仪进行了电导率的测量。LiBr,LiCl,LiNO3在甲醇、乙醇、正丙醇、异丙醇中(溶液浓度在0.08mol•L-1之内）分别在298.15K，323.15K,313.15K温度时常压下的电导率进行了测量。相关的电导率数据用Foss-Chen-Justice(FCJ)方程进行了关联，得到了无限稀释摩尔电导率。这些盐类在有机溶剂中的平均离子活度系数根据Debye-Hückel极限定律和Onsager-Falkenhangen方程进行了计算。计算结果与文献中的数据进行了比较。

关键词: 电导率, 平均离子活度系数, 锂盐, 醇

Abstract: Measurements of conductivity were carried out by using a conductivity meter. The conductivity data of LiBr, LiCl, and LiNO3 in methanol, ethanol, 1-propanol, and 2-propanol (solution concentration within 0.08 mol L-1) were determined at 298.15K, 313.15K, and 323.15K at atmosphere pressure, respectively. The conductivity data were correlated with Foss-Chen-Justice (FCJ) equation and the limiting molar conductivities were obtained. The mean ion activity coefficients of the salts in the solvents were calculated according to the Debye-Hückel limiting law and Onsager-Falkenhangen equations. The calculated results were compared with those activity coefficients from literatures.

中图分类号:

陈红王利生姜波李弥异. Measurements of Conductivity for Strong-Electrolytes in Organic Solvents at Low Concentration. 1. LiBr, LiCl, and LiNO3 in Alcohols [J]. .

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