Excess molar volumes and liquid-liquid equilibria of the ionic liquid 1-methyl-3-octyl-imidazolium tetrafluoroborate mixed with butan-1-ol and pentan-1-ol

被引：81

作者：

Heintz, A ^{[1
]}

Klasen, D ^{[1
]}

Lehmann, JK ^{[1
]}

Wertz, C ^{[1
]}

机构：

[1] Univ Rostock, Dept Phys Chem, D-18051 Rostock, Germany

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2005年 / 34卷 / 10期

关键词：

ionic liquids; densities; excess volume; liquid-liquid equilibria;

D O I：

10.1007/s10953-005-7692-y

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：

Experimental densities were measured for the system 1-methyl-3-octyl-imidazolium tetrafluoroborate [OMIM][BF4] + butan-1-ol, + pentan-1-ol at 298.15 K and ambient pressure using a vibrating tube densimeter, taking into account the influence of the viscosity correction. Excess molar volumes V-E have been determined. V-E is quite small and negative in the alcohol-rich range of the mixture composition and positive in the alcohol-poor range. LLE data of [OMIM][BF4] + pentan-1-ol have been measured using a laser light scattering cell for detecting cloud points at different compositions in the temperature range of 282-292 K. A miscibility gap with an upper critical solution temperature (UCST) of 292 K has been found.

引用

页码：1135 / 1144

页数：10

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