文献类型：期刊文献

英文题名：Properties of pure 1-methylimidazolium acetate ionic liquid and its binary mixtures with alcohols

作者：Qian, Wu[1];Xu, Yingjie[1];Zhu, Hongye[1];Yu, Chaohong[1]

机构：[1]Shaoxing Univ, Dept Chem, Shaoxing 312000, Zhejiang, Peoples R China

年份：2012

卷号：49

起止页码：87

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：SCI-EXPANDED(收录号：WOS:000301130000012)、、EI(收录号：20121114851912)、Scopus(收录号：2-s2.0-84857997923)、WOS

基金：The authors are grateful for the financial supports from the National Natural Science Foundation of Zhejiang Province (No. Y4090453) and Undergraduate Scientific and Technological Innovation Project of Zhejiang Province (No. 2011R426011).

语种：英文

外文关键词：Ionic liquid; 1-Methylimidazolium acetate; Density; Excess molar volume; Viscosity

外文摘要：Densities and viscosities of the pure ionic liquid 1-methylimidazolium acetate ([Mim]Ac) and its binary mixtures with methanol, ethanol, 1-propanol, and 1-butanol were measured at temperature ranging from T = (293.15 to 313.15) K. The thermal expansion coefficient, molecular volume, standard entropy, and lattice energy of [Mim]Ac were deduced from the experimental density results. A simple linear equation was used to correlate the variation of viscosity of [Mim]Ac with temperature. Excess molar volumes V-E and viscosity deviations Delta eta for the binary mixtures at above mentioned temperature were calculated and fitted to the Redlich-Kister equation with satisfactory results. Excess molar volumes for {[Mim]Ac + 1-butanol} mixture have an S shape, while those for other mixtures have a negative deviation from ideal behaviour over the entire mole fraction range. Viscosity deviations are all negative deviation for {[Mim]Ac + alcohol} mixtures. The results were interpreted in terms of interactions and structural factors of binary mixtures. (C) 2012 Elsevier Ltd. All rights reserved.