Osmotic coefficients of aqueous solutions of four ionic liquids at T = (313.15 and 333.15) K

被引：51

作者：

Gonzalez, Begona ^{[1
]}

Calvar, Noelia ^{[2
]}

Dominguez, Angeles ^{[2
]}

Macedo, Eugenia A. ^{[1
]}

机构：

[1] Univ Porto, Lab Separat & React Engn, Dept Engn Quim, Fac Engn, P-4200465 Oporto, Portugal

[2] Univ Vigo, Dept Ingn Quim, Vigo 36200, Spain

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2008年 / 40卷 / 09期

关键词：

Osmotic coefficients; Activity; Vapour pressure osmometry; Ionic liquids;

D O I：

10.1016/j.jct.2008.05.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Measurements of osmotic coefficients of BmimCl (1-butyl-3-methylimidazolium chloride), HmimCl (1-hexyl-3-methylimidazolium chloride), MmimMeSO(4) (1,3-dimethylimidazolium methylsulfate), and BmimMeSO(4) (1-butyl-3-methylimidazolium methylsulfate) with water at T = (313.15 and 333.15) K are reported in this work. Vapour pressure and activity data of all the studied binary systems are obtained from experimental data. The osmotic coefficients data are correlated using the extended Pitzer model of Archer and the modified NRTL (MNRTL) model and standard deviations obtained with both models are given too. The parameters obtained with the extended Pitzer model of Archer are used to calculate the mean molal activity coefficients. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1346 / 1351

页数：6

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