Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

Excess molar enthalpies, HE m, and volumes, V E m, were reported for binary mixtures of {nonafluorobutylmethylether, (FBME, C4F9OCH3) + 2-propanone, or + 2-butanone, or + 3-pentanone} at 298.15 K. Results of HE m and V E m were positive over a whole range of concentrations for all the mixtures. The magnitude was in order: 2-propanone > 3-pentanone > 2-butanone for HE m and 3-pentanone > 2-butanone = 2-propanone for V E m at the maximum point. However, the difference in the maximum values of HE m and V E m by the increase in the number of carbon atoms in the ketones, nC is not so large. From these results, partial molar quantities oHE;1 m;i ; V E;1 m;i ; and V1m ;iP of the i component at infinite dilution, and apparent molar enthalpies of solvation, DsolvHi of the i component were evaluated. The dependence of these thermodynamic quantities on the nC were discussed in consideration of various kinds of intermolecular interactions in pure component liquids and solutions.