Liquid-liquid equilibria and liquid-liquid interfacial tension measurements of mixtures containing ionic liquids

被引：37
|
作者：
Wertz, Ch. [1 ]
Tschersich, A. [1 ]
Lehmann, J. K. [1 ]
Heintz, A. [1 ]
机构：
[1] Univ Rostock, Dept Phys Chem, D-18055 Rostock, Germany
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2007年 / 131卷 / SPEC. ISS.期
关键词：
ionic liquids; liquid-liquid equilibria; influence of impurities; interfacial tension; solution chemistry;
D O I：
10.1016/j.molliq.2006.08.021
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：
Continuing our research work on ionic liquids new results for liquid-liquid equilibria (LLE) of binary mixtures of the ionic liquids 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C4MIM][NTf2]) or 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C6MIM][NTf2]) and hexan-1-ol are presented. For the mixture [C4MIM][NTf2]+1,2-hexanediol the interfacial tension gamma between the two liquid phases being in equilibrium has been measured as a function of temperature using a pendant-drop tensiometer. Additionally, for systems [C4MIM][NTf2]+alcohol the influence of impurities like 1-methylimidazole and water on the demixing temperature was investigated. (C) 2006 Elsevier B.V. All rights reserved.
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页码：2 / 6
页数：5
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