Activity coefficients at infinite dilution of organic solutes in 1-hexyl-3-methylimidazolium trifluoroacetate and influence of interfacial adsorption using gas-liquid chromatography

被引：14
|
作者：
Jiang, Lin-Kun [1 ,2 ]
Wang, Li-Sheng [1 ]
Du, Chao-Jun [1 ]
Wang, Xue-Yuan [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China
[2] Inner Mongol Univ Technol, Wuhai Coll, Wuhai 016000, Peoples R China
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2014年 / 70卷
关键词：
Activity coefficient at infinite dilution; Gas-liquid partition coefficients; Ionic liquid; Interfacial adsorption; HMIM][TFA; 2ND VIRIAL-COEFFICIENTS; TEMPERATURE IONIC LIQUIDS; SOLVENT PROPERTIES; RETENTION; MIXTURES; WATER;
D O I：
10.1016/j.jct.2013.10.038
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Activity coefficients at infinite dilution for a series of organic solutes in the ionic liquid 1-hexyl-3-methylimidazolium trifluoroacetate ([HMIM][TFA]) have been determined by gas-liquid chromatography at the temperature range from (303.15 to 363.15) K. The contribution of interfacial adsorption to the retention mechanism was estimated by changing the loading of ionic liquid in stationary phase. The partial molar excess enthalpies at infinite dilution and the solubility parameters of ionic liquid were also calculated from the experimental values of activity coefficients at infinite dilution. (C) 2013 Elsevier Ltd. All rights reserved.
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收藏
页码：138 / 146
页数：9
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