Physical properties and phase equilibria of the system isopropyl acetate + isopropanol + 1-octyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide |
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Authors: | Alfonsina E Andreatta Alberto Arce Eva RodilAna Soto |
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Institution: | Chemical Engineering Department, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain |
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Abstract: | Densities, refractive indices and dynamic viscosities of binary and ternary mixtures composed of isopropyl acetate, isopropanol, 1-octyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide (C8mim]NTf2]) have been determined at 298.15 K and atmospheric pressure. The excess molar volumes and dynamic viscosity changes of mixing have been calculated and correlated using the Redlich–Kister polynomial equation. Isobaric vapour–liquid equilibrium (VLE) data have been determined experimentally for these binary and ternary systems at 101.32 kPa. The equilibrium data have been adequately correlated by means of Wilson, NRTL, and UNIQUAC equations for the liquid phase activity coefficient. |
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Keywords: | Physical properties Vapour&ndash liquid equilibrium Isopropyl acetate Isopropanol 1-Octyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide |
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