文献类型：期刊文献

英文题名：Physicochemical properties of aqueous solution of 1-methylimidazolium acetate ionic liquid at several temperatures

作者：Chen, Jiayi[1];Chen, Lingxiao[1];Lu, Yueqing[1];Xu, Yingjie[1]

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

年份：2014

卷号：197

起止页码：374

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：SCI-EXPANDED(收录号：WOS:000340301900053)、、EI(收录号：20143017989803)、Scopus(收录号：2-s2.0-84904653318)、WOS

基金：The authors are grateful for the financial supports from the National Natural Science Foundation of Zhejiang Province (no. Y4090453).

语种：英文

外文关键词：Protic ionic liquid; 1-Methylimidazolium acetate; Thermodynamic property; Viscosity

外文摘要：Densities (rho) and viscosities (eta) of 1-methylimidazolium acetate ([Mim]Ac) protic ionic liquid + water mixture were measured at T= (293.15, 298.15,303.15, 308.15 and 313.15) K under atmospheric pressure. Refractive indices (n(D)) and electrical conductivities (kappa) of the above-mentioned system over the entire composition range were measured at 298.15 K. Excess molar volumes (V-E), viscosity deviations (Delta eta) and refractive index deviations (Delta n(D)) were obtained from the experimental data and fitted to the Redlich-Kister equation with satisfactory results. The results show that V-E values of the system are negative over the whole composition range, whereas Delta eta and Delta n(D) values are positive. Other volumetric properties such as apparent molar volumes (V-phi i), partial molar volumes (Vm,i) and excess partial molar volumes ((V) over bar (E)(m,i)) of the system were calculated from the density data. The concentration dependence of kappa was fitted according to the empirical Casteel-Amis equation. The measured and derived properties were employed to investigate the intermolecular interactions of the system. (C) 2014 Elsevier B.V. All rights reserved.