Characterization of New Solvents

Despite ionic liquids (IL) were first reported a century ago, an increased interest in this class of solvents has been observed more recently. Their application as alternative solvents is mainly due to their attractive properties. Due to the possible combination of cations and anions, the number of different structures is very high, and therefore there is great need to characterize the IL, by studying their thermodynamic and physico-chemical properties with high accuracy. The research carried out consists of experimental measurement of physical and thermodynamic properties (densities, viscosities, refractive indices, temperature transitions, heat capacities, vapor pressures) of pure and mixed IL, which are crucial for Chemical Engineering applications.

Gravimetric sample preparation
Gravimetric sample preparation
Determination of osmotic and activity coefficients using the Vapor Pressure Osmometer
Determination of osmotic and activity coefficients using the Vapor Pressure Osmometer
SELECTED PUBLICATIONS
E.J. González, B. González, E.A. Macedo. Effect of the relative humidity and isomeric structure on the physical properties of pyridinium based-ionic liquids. Journal of Chemical Thermodynamics, 86, 96-105, 2015
E.J. González, N. Calvar, E.A. Macedo. Osmotic coefficients and apparent molar volumes of 1-hexyl-3- methylimidazolium trifluoromethanesulfonate ionic liquid in alcohols. Journal of Chemical Thermodynamics, 69, 93-100, 2014
N. Calvar, Á. Domínguez, E.A. Macedo. Osmotic coefficients of alcoholic mixtures containing BMpyrDCA: Experimental determination and correlation. Journal of Chemical Thermodynamics, 72, 9-15, 2014
E.J. González, B. González, E.A. Macedo. Thermophysical properties of the pure ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide and its binary mixtures with alcohols. Journal of Chemical and Engineering Data, 58, 1425-1428, 2013
E. Gómez, N. Calvar, A. Domínguez, E.A. Macedo. Thermal analysis and heat capacities of 1-alkyl-3-methylimidazolium ionic liquids with NTf2 -, TFO-, and DCA- anions. Industrial and Engineering Chemistry Research, 52, 2103-2110, 2013
N. Calvar, E. Gómez, E.A. Macedo, A. Domínguez. Thermal analysis and heat capacities of pyridinium and imidazolium ionic liquids. Thermochimica Acta, 565, 178-182, 2013