High-pressure volumetric properties of ionic liquids: 1-butyl-3-methylimidazolium tetrafluoroborate, [C4mim][BF4], 1-butyl-3-methylimidazolium methylsulfate [C4mim][MeSO4] and 1-ethyl-3-methylimidazolium ethylsulfate, [C2mim][EtSO4]

被引：65

作者：

Matkowska, Dobrochna ^{[1
]}

Hofman, Tadeusz ^{[1
]}

机构：

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

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2012年 / 165卷

关键词：

Ionic liquids; Density; Excess volume; Isothermal compressibility; Isobaric expansivity; CONCENTRATED AQUEOUS-SOLUTIONS; EXCESS MOLAR PROPERTIES; FLORY-PATTERSON THEORY; PLUS METHANOL SYSTEM; PHYSICAL-PROPERTIES; THERMODYNAMIC PROPERTIES; BINARY-MIXTURES; REFRACTIVE-INDEX; SURFACE-TENSION; PHASE-BEHAVIOR;

D O I：

10.1016/j.molliq.2011.11.004

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：

Pressure-density-temperature measurements of the following pure ionic liquids-1-buty1-3-methylimidazolium tetrafluoroborate, [C(4)mim]BF4], 1-butyl-3-methylimidazolium methylsulfate [C(4)mim][MeSO4] and 1-ethyl-3-methylimidazolium ethylsulfate [C(2)mim][EtSO4] were performed using a vibrating tube densimeter over the temperature range (283.15 to 353.15)K and the pressure range (0.1 to 35)MPa. Experimental densities have been correlated by the Tait equation with the temperature dependent parameters. The isobaric expansivity and isothermal compressibility have been calculated. The influence of the cation alkyl chain length and the character of anion on the measured properties were discussed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：161 / 167

页数：7

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