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Thermodynamic Properties of Binary Mixtures of the Amino Acid Ionic Liquids [Bmim][Glu] or [Bmim][Gly] with Methanol at T=298.15 to 313.15 K

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Abstract

Densities, viscosities and refractive indices were determined for two ionic liquid mixtures formed by the 1-butyl-3-methylimidazolium glutamic acid salt ([Bmim][Glu]) or the 1-butyl-3-methylimidazolium glycine acid salt ([Bmim][Gly]), respectively, with methanol over the mole fraction from 0.1 to 0.9 and at temperatures ranging from 298.15 K to 313.15 K at intervals of 5 K and at atmospheric pressure. Excess molar volumes, viscosity deviations and refractive index deviations have been calculated from the experimental data and fitted to a Redlich–Kister polynomial function. The results have been interpreted in terms of ion-dipole interactions, and structural factors of the ionic liquid and alcohol molecular liquids.

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  1. School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, China

    Zhichao Yu, Haiyan Gao, Haijun Wang & Lianwei Chen

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  1. Zhichao Yu
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  2. Haiyan Gao
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  3. Haijun Wang
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  4. Lianwei Chen
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Correspondence to Haijun Wang.

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Yu, Z., Gao, H., Wang, H. et al. Thermodynamic Properties of Binary Mixtures of the Amino Acid Ionic Liquids [Bmim][Glu] or [Bmim][Gly] with Methanol at T=298.15 to 313.15 K. J Solution Chem 41, 173–186 (2012). https://doi.org/10.1007/s10953-011-9788-x

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