文献类型：期刊文献

中文题名：离子液体[C4mim][PF6]与N,N-二甲基甲酰胺二元混合物在298.15K～318.15K的密度和粘度（英文）

英文题名：Densities and Viscosities of the Ionic Liquid [C4mim][PF6]+N,N-dimethylformamide Binary Mixtures at 293.15 K to 318.15 K

作者：耿彦芳;王腾芳;虞大红;彭昌军;刘洪来;胡英

机构：[1] State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, China

年份：2008

卷号：16

期号：2

起止页码：256

中文期刊名：中国化学工程学报(英文版)

外文期刊名：Chinese Journal of Chemical Engineering

收录：CSTPCD;;EI(收录号：20081911248541);Scopus;CSCD:【CSCD2011_2012】；

基金：the National Natural Science Foundation of China(20476025,20776040);Shanghai Municipal Science andTechnology Commission of China(05DJ14002);Hubei Key Laboratory of Novel Chemical Reactor and Green ChemicalTechnology of China(XLHX2007002)

语种：中文

中文关键词：ionic liquid;N;N-dimethylformamide;density;viscosity;[C4mim][PF6];correlation

外文关键词：ionic liquid;N;N-dimethylformamide;density;viscosity;[C4mim][PF6];correlation

摘要：Viscosities and densities for 1-butyl-3-methylimidazolium hexafluorophosphate([C4mim][PF6])and N, N-dimethylformamide(DMF)binary mixtures have been measured at the temperature range from 293.15 K to 318.15 K.It is shown that the viscosities and densities decrease monotonously with temperature and the content of DMF.Various correlation methods including Arrhenius-like equation,Seddon et al.’s equation,Redlich-Kister equation with four parameters,and other empirical equations were applied to evaluate these experimental data.A model based on an equation of state for estimating the viscosity of mixtures containing ionic liquids were proposed by coupling with the excess Gibbs free energy model of viscosity,which can synchronously calculate the viscosity and the molar volume.The results show that the model gives a deviation of 8.29%for the viscosity,and a deviation of 1.05%for the molar volume when only one temperature-independent adjustable parameter is adopted.The cor- relation accuracy is further improved when two parameters or one temperature-dependent parameter is used.
Viscosities and densities for 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim][PF6]) and N,N-dimethylformamide (DMF) binary mixtures have been measured at the temperature range from 293.15 K to 318.15 K. It is shown that the viscosities and densities decrease monotonously with temperature and the content of DME Various correlation methods including Arrhenius-like equation, Seddon et al.'s equation, Redlich-Kister equation with four parameters, and other empirical equations were applied to evaluate these experimental data. A model based on an equation of state for estimating the viscosity of mixtures containing ionic liquids were proposed by coupling with the excess Gibbs free energy model of viscosity, which can synchronously calculate the viscosity and the molar volume. The results show that the model gives a deviation of 8.29% for the viscosity, and a deviation of 1.05% for the molar volume when only one temperature-independent adjustable parameter is adopted. The cor-relation accuracy is further improved when two parameters or one temperature-dependent parameter is used.