Thermodynamic properties of mixtures containing ionic liquids: Vapor pressures and activity coefficients of n-alcohols and benzene in binary mixtures with 1-methyl-3-butyl-imidazolium bis(trifluoromethyl-sulfonyl) imide

Abstract

Vapor–liquid equilibria (VLE) of binary mixtures containing methanol, ethanol, propanol-1 and benzene in the ionic liquid [BMIM] [NTf 2] were studied by using a static method. VLE measurements were carried out over the whole concentration range at four different temperatures in the range from 298.15 to 313.15 K. Activity coefficients γ i of these solvents in the ionic liquid have been determined from the VLE data and are described formally by using the NRTL equation.