Excess molar volumes of binary mixtures (an ionic liquid plus water): A review

被引：102

作者：

Bahadur, Indra ^{[1
]}

Letcher, Trevor M. ^{[1
]}

Singh, Sangeeta ^{[2
]}

Redhi, Gan G. ^{[2
]}

Venkatesu, Pannuru ^{[3
]}

Ramjugernath, Deresh ^{[1
]}

机构：

[1] Univ KwaZulu Natal, Thermodynam Res Unit, Sch Engn, ZA-4041 Durban, South Africa

[2] Durban Univ Technol, Dept Chem, ZA-4000 Durban, South Africa

[3] Univ Delhi, Dept Chem, Delhi 110007, India

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2015年 / 82卷

基金：

新加坡国家研究基金会;

关键词：

Ionic liquids; Water; Excess volumes; Partial molar volumes; Binary mixtures; Review; TERNARY-SYSTEM (ETHANOL; PHYSICAL-PROPERTIES; AQUEOUS-SOLUTIONS; 298.15; K; 1-BUTYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE; 1-ETHYL-3-METHYLIMIDAZOLIUM ETHYLSULFATE; THERMODYNAMIC ANALYSIS; IMIDAZOLIUM CATION; HEAT-CAPACITY; DENSITIES;

D O I：

10.1016/j.jct.2014.10.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This review covers recent developments in the area of excess molar volumes for mixtures of {ILs (1) + H2O (2)} where ILs refers to ionic liquids involving cations: imidazolium, pyridinium, pyrrolidinium, piperidinium, morpholinium and ammonium groups; and anions: tetraborate, triflate, hydrogensulphate, methylsulphate, ethylsulphate, thiocyanate, dicyanamide, octanate, acetate, nitrate, chloride, bromide, and iodine. The excess molar volumes of aqueous ILs were found to cover a wide range of values for the different ILs (ranging from 1.7 cm(3) mol center dot 1 to 1.2 cm3 center dot mol(-1)). The excess molar volumes increased with increasing temperature for all systems studied in this review. The magnitude and in some cases the sign of the excess molar volumes for all the aqueous ILs mixtures, apart from the ammonium ILs, were very dependent on temperature. This was particularly important in the dilute IL concentration region. It was found that the sign and magnitude of the excess molar volumes of aqueous ILs (for ILs with hydrophobic cations), was more dependent on the nature of the anion than on the cation. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：34 / 46

页数：13

共 53 条

[1] High-pressure densities and derived volumetric properties (excess, apparent, and partial molar volumes) of binary mixtures of {methanol (1) + [BMIM][BF4] (2)} [J].