Determination of physical properties for the mixtures of [BMIM]Cl with different organic solvents

作     者：Hina Saba Xinjun Zhu Ye Chen Yumei Zhang 

作者机构：State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Department of Material and Engineering Luoyang Institute of Science and Technology 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2015年第23卷第5期

页      面：804-811页

核心收录：

学科分类：080705[工学-制冷及低温工程] 0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(51273041) 

主　　题：二元混合物 有机溶剂 Cl 物理性能 测定 DMSO 浓度增加 自由离子 

摘      要：Physical properties including refractive index, density, viscosity and conductivity for binary mixtures of 1-butyl-3-methyl imidazolium chloride([BMIM]Cl) and different organic solvents at 298.15 K have been investigated. Excess molar volumes have been calculated and obtained data has been fitted by the Redlich–Kister equation. The density and refractive index were found to increase with increasing concentration of [BMIM]Cl, however, exceptions do exist as in the case of dimethyl sulfoxide(DMSO)/[BMIM]Cl. For DMSO/[BMIM]Cl, the density decreases with increasing concentration. The addition of different organic solvents was able to disrupt the interactions within mixtures, leading to free mobility of ions. The free mobility of ions has been found to enhance conductivity and decrease viscosity to varying extents in all mixtures studied. It has been observed that solubility parameters,dielectric constants and composition of the solvents used play a vital role in determining the resultant properties.The data obtained will play an important role in understanding the effect of the addition of organic solvents in ILs to enhance their applicability.