| 离子液体[C4mim][PF6]与N, N-二甲基甲酰胺二元混合物在298.15 K～318.15 K的密度和粘度 |
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| 引用本文： | 耿彦芳,王腾芳,虞大红,彭昌军,刘洪来,胡英.离子液体[C4mim][PF6]与N, N-二甲基甲酰胺二元混合物在298.15 K～318.15 K的密度和粘度[J].中国化学工程学报,2008,16(2):256-262. |
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| 作者姓名： | 耿彦芳 王腾芳 虞大红 彭昌军 刘洪来 胡英 |
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| 作者单位： | State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China |
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| 基金项目： | 国家自然科学基金，Shanghai Municipal Science and Technology Commission of China，Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical Technology of China |
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| 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, Sedclon 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 Ior 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 correlation accuracy is further improved when two parameters or one temperature-dependent parameter is used.
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| 关 键 词： | ionic liquid N N-dimethylformamide density viscosity [C4mim][PF6] correlation |
| 收稿时间： | 20 June 2007 |
| 修稿时间： | 2007年6月20日 |
Densities and viscosities of the ionic liquid [C4mim][PF6] + N, N-dimethylformamide binary mixtures at 293.15K to 318.15K |
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| GENG Yanfang,WANG Tengfang,YU Dahong,PENG Changjun,LIU Honglai,HU Ying.Densities and viscosities of the ionic liquid [C4mim][PF6] + N, N-dimethylformamide binary mixtures at 293.15K to 318.15K[J].Chinese Journal of Chemical Engineering,2008,16(2):256-262. |
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| Authors: | GENG Yanfang WANG Tengfang YU Dahong PENG Changjun LIU Honglai HU Ying |
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| Affiliation: | State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | 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. |
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| Keywords: | ionic liquid N N-dimethylformamide density viscosity [C4mim][PF6] correlation |
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