Liquid–liquid equilibria of 1,3-dimethylimidazolium methyl sulfate with ketones, dialkyl carbonates and acetates

The liquid–liquid equilibria of several binary systems of 1,3-dimethylimidazolium methyl sulfate MMIM MeSO4 and dialkyl carbonates (dimethyl carbonate and diethyl carbonate), ketones (acetone, 2-butanone and 2-pentanone) or acetates (methyl acetate and ethyl acetate) were studied from 278.15 K to close to the boiling temperature of the solvent. The liquid–liquid equilibrium of the ternary system of 2-butanone + ethanol + MMIM MeSO4 was carried out at 298.15 K and atmospheric pressure. Experimental liquid–liquid data are compared with the correlated values obtained by means of the NRTL equation. This model satisfactorily correlates the experimental data.