文献类型：期刊文献

英文题名：Density, viscosity and electrical conductivity of 1-butyl-3-methylimidazolium hexafluorophosphate + monoethanolamine and + N, N-dimethylethanolamine

作者：Geng, Yanfang[1]; Chen, Siliu[1]; Wang, Tengfang[1]; Yu, Dahong[1]; Peng, Changjun[1]; Liu, Honglai[2]; Hu, Ying[2]

机构：[1] Lab for Advanced Material, Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, China; [2] State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, 200237 Shanghai, China

年份：2008

卷号：143

期号：2-3

起止页码：100

外文期刊名：Journal of Molecular Liquids

收录：EI(收录号：20084111629622)

语种：英文

外文关键词：Equations of state - Ionic liquids - Binary mixtures - Electric conductivity - Ethanolamines

摘要：Densities, viscosities and electrical conductivities of ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim][PF6]) in monoethanolamine (MEA) and N, N-dimethylethanolamine (DMEA) have been determined from (288.15 to 323.15) K. The results show that the densities of both binary mixtures linearly decrease with increasing temperature. The dependence of temperature on the viscosity has been fitted to the Arrhenius equation with high precision. A viscosity model based on the equation of state for chain-like fluids and a solute aggregation model were used to calculate the viscosity of binary mixture. The dependence of temperature on the electrical conductivity has also been fitted in the form of Arrhenius equation. The effect of concentration of ionic liquid on the electrical conductivity has been examined using the Walden rule. Excess molar volumes and viscosity deviations from a mole fraction average have been obtained and fitted to the Redlich-Kister equation. ? 2008.