Thermophysical properties of phosphonium-based ionic liquids

被引：71

作者：

Bhattacharjee, Arijit ^{[1
]}

Lopes-da-Silva, Jose A. ^{[2
]}

Freire, Mara G. ^{[1
]}

Coutinho, Joao A. P. ^{[1
]}

Carvalho, Pedro J. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Chem, CICECO Aveiro Inst Mat, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Quim, QOPNA Unit, P-3810193 Aveiro, Portugal

来源：

FLUID PHASE EQUILIBRIA | 2015年 / 400卷

基金：

欧洲研究理事会;

关键词：

Phosphonium; Ionic liquids; Density; Viscosity; Refractive index; Surface tension; PRESSURE VOLUMETRIC PROPERTIES; SURFACE-TENSION; PHYSICOCHEMICAL PROPERTIES; TRANSPORT-PROPERTIES; REFRACTIVE-INDEX; CARBON-DIOXIDE; ELECTROCHEMICAL PROPERTIES; THERMODYNAMIC PROPERTIES; IMIDAZOLIUM; TEMPERATURE;

D O I：

10.1016/j.fluid.2015.05.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental data for density, viscosity, refractive index and surface tension of four phosphonium-based ionic liquids were measured in the temperature range between (288.15 and 353.15) K and at atmospheric pressure. The ionic liquids considered include tri(isobutyl) methylphosphonium tosylate, [P-i(444) (1)][Tos], tri(butyl) methylphosphonium methylsulfate, [P-4441][CH3SO4], tri(butyl) ethylphosphonium diethylphosphate, [P-4442][(C2H5O)(2)PO2], and tetraoctylphosphonium bromide, [P-8888][Br]. Additionally, derivative properties, such as the isobaric thermal expansion coefficient, the surface thermodynamic properties and the critical temperatures for the investigated ionic liquids were also estimated and are presented and discussed. Group contribution methods were evaluated and fitted to the density, viscosity and refractive index experimental data. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：103 / 113

页数：11

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