Abstract

MARTINEZ REINA, Marlon Doney  and  GONZALEZ, Eliseo Amado. BINARY MIXTURES OF IONIC LIQUID WITH MOLECULAR SOLVENT: PREDICTION OF EXCESS MOLAR VOLUMES FROM REFRACTIVE INDEX. Cienc. Ing. Neogranad. [online]. 2011, vol.21, n.2, pp.21-40. ISSN 0124-8170.

The excess molar volumes of 30 binary mixtures containing ionic liquids of imidazolium with different molecular solvents: (methanol, ethanol, propan-1-ol, propan-2-ol, acetone, 2-butanone, 2-pentanone, methyl acetate, ethyl acetate, butyl acetate, dimethyl carbonate, diethyl carbonate, nitromethane, 1,3-dichloropropane and ethylene glycol), were predicted from the refractive index data, using three types of methods coupled with several different mixing rules for refractive index calculations: Lorentz-Lorenz, Dale-Gladstone, Eykman, Arago-Biot, Newton and Oster. In these systems, molecular interactions and intermolecular forces during mixing produce positive or negative deviations from ideal behavior. The results are analyzed in terms of the nature of ionic liquid and molecular solvent.

Keywords : excess molar volume; refractive index; prediction; liquid ionic; molecular solvent.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )