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含盐体系汽液平衡数据的检验

孙仁义 孙茜

化工学报2002,Vol.53Issue(8):875-878,4.
化工学报2002,Vol.53Issue(8):875-878,4.

含盐体系汽液平衡数据的检验

VERIFICATION OF VAPOR-LIQUID EQUILIBRIUM DATA FOR SALT-CONTAINING SYSTEMS

孙仁义 1孙茜2

作者信息

  • 1. 河南大学化学系,河南,开封,475001
  • 2. 华东师范大学化学系,上海,200062
  • 折叠

摘要

Abstract

This paper regards the activity coefficient of salt in mixed solvents with constant composition as a function of vapor-liquid equilibrium data by means of ternary Gibbs-Duhem equation. A verification method including two independent criteria for vapor-liquid equilibrium data of salt-containing system is proposed on the bases of thermodynamics and the Debye-Hückel electrolytical solution theory.According to the criteria every experimental point can be verified by the calculation of its vapor-liquid equilibrium data.Not only is this method rigorous in the theory,but also very convenient in the application.Under the condition of fixing the ratio between two solvents it can be used for vapor-liquid equilibrium data verification of various salt-containing systems,whether the systems are isothemic or isobaric,aqueous or non-aqueous,up to saturated or non-saturated.

关键词

数据检验 汽液平衡盐效应 Gibbs-Duhem方程 电解质活度系数

Key words

data verification/salt effect in vapor-liquid equilibrium/Gibbs-Duhem equation/electrolytical activity coefficient

分类

化学化工

引用本文复制引用

孙仁义,孙茜..含盐体系汽液平衡数据的检验[J].化工学报,2002,53(8):875-878,4.

基金项目

河南省科委自然科学基金(No.994031900)及河南省教委自然科学基金(No.200015028)资助项目. (No.994031900)

化工学报

OA北大核心CSCDCSTPCD

0438-1157

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