含盐体系汽液平衡数据的检验  

VERIFICATION OF VAPOR-LIQUID EQUILIBRIUM DATAFOR SALT-CONTAINING SYSTEMS

作　　者：孙仁义[1] 孙茜[2] 

机构地区：[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

出　　处：《化工学报》2002年第8期875-878,共4页CIESC Journal

基　　金：河南省科委自然科学基金 (No 9940 3 190 0 );河南省教委自然科学基金 (No 2 0 0 0 15 0 2 8)资助项目

摘　　要：This paper regards the activity coefficient of salt in mixed solvents with const ant composition as a function of vapor-liquid equilibrium data by means of terna ry Gibbs-Duhem equation. A verification method including two independent criteri a for vapor-liquid equilibrium data of salt-containing system is proposed on the bases of thermodynamics and the Debye-Hückel electrolytical solution theory.A ccording to the criteria every experimental point can be verified by the calcula tion of its vapor-liquid equilibrium data.Not only is this method rigorous in th e theory,but also very convenient in the application.Under the condition of fix ing the ratio between two solvents it can be used for vapor-liquid equilibrium d ata verification of various salt-containing systems,whether the systems are isot hemic or isobaric,aqueous or non-aqueous,up to saturated or non-saturated.This paper regards the activity coefficient of salt in mixed solvents with const ant composition as a function of vapor-liquid equilibrium data by means of terna ry Gibbs-Duhem equation. A verification method including two independent criteri a for vapor-liquid equilibrium data of salt-containing system is proposed on the bases of thermodynamics and the Debye-Hückel electrolytical solution theory.A ccording to the criteria every experimental point can be verified by the calcula tion of its vapor-liquid equilibrium data.Not only is this method rigorous in th e theory,but also very convenient in the application.Under the condition of fix ing the ratio between two solvents it can be used for vapor-liquid equilibrium d ata verification of various salt-containing systems,whether the systems are isot hemic 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 含盐体系 汽液平衡数据 

分 类 号：O642.4[理学—物理化学]