Activity coefficients at infinite dilution measurements for organic solutes and water in the ionic liquid 1-ethyl-3-methylimidazolium trifluoroacetate

被引：91

作者：

Domanska, Urszula ^{[1
]}

Marciniak, Andrzej ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Chem, Div Phys Chem, PL-00664 Warsaw, Poland

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2007年 / 111卷 / 41期

关键词：

D O I：

10.1021/jp075079+

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The activity coefficients at infinite dilution, gamma(infinity)(13) for 29 solutes, alkanes, alkenes, alkynes, cycloalkanes, aromatic hydrocarbons, alcohols and water in the ionic liquid 1-ethyl-3-methylimidazolium trifluoroacetate ([EMIM][TFA]), were determined by gas-liquid chromatography at temperatures from 298.15-368.15 K. The partial molar excess enthalpies at infinite dilution Delta H-1(E,infinity) values were calculated from the experimental gamma(infinity)(13) values obtained over the temperature range. The selectivities for the hexane/benzene and cyclohexane/benzene separation were calculated from gamma(infinity)(13) and compared to the literature values for other ionic liquids, NMP and sulfolane.

引用

页码：11984 / 11988

页数：5

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