Solubility of ionic liquid [emim][PF6] in alcohols

被引：124

作者：

Domanska, U ^{[1
]}

Marciniak, A ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 07期

关键词：

D O I：

10.1021/jp030582h

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 solubility of 1-ethyl -3-methylimidazolium hexafluorophosphate, [emim][PF6], in alcohols (methanol, ethanol, propan-1-ol, propan-2-ol, butan-1-ol, butan-2-ol, tert-butyl alcohol, and 3-methylbutan-1-ol) has been measured by a dynamic method from 290 K to the melting point of ionic liquid or to the boiling point of the solvent. The solubility of [emim][PF6] in alcohols decreases with an increase of the molecular weight of the solvent and is higher in secondary alcohols than in primary alcohols. In every case, with the exception of methanol, the mutual liquid-liquid equilibrium was observed. The shape of the equilibrium curve is similar for [emim][PF6] in every alcohol. The observation of the upper critical solution temperature was limited by the boiling temperature of the solvent. The liquidus curves were correlated by means of two modified nonrandom two-liquid and the UNIQUAC ASM equations utilizing parameters derived from the solid-liquid equilibrium.

引用

页码：2376 / 2382

页数：7

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