Experimental and predicted excess enthalpies of the 2,2,2-trifluoroethanol–water–tetraethylene glycol dimethyl ether ternary system using binary mixing data

Abstract

Excess enthalpies of the ternary mixture 2,2,2-trifluoroethanol–water–tetraethylene glycol dimethyl ether and the corresponding binary mixtures at 298.15 K have been measured using a standard Calvet microcalorimeter. Wilson, NRTL, UNIQUAC and Wang et al. models have been used to correlate the binary excess enthalpies and, using the parameters obtained, to predict ternary excess molar enthalpies, H^E. Several empirical equations predicting ternary-mixture properties from the binary-mixing data have been also examined.