Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

Densities of the binary mixtures of (diethylcarbonate + acetophenone), (diethylcarbonate + 1-hexanol), and (acetophenone + 1-hexanol) were measured at T = (293.15, 303.15, 313.15, and 323.15) K for the liquid region and at ambient pressure over the whole composition range using a vibrating U-tube densimeter. The excess molar volumes V E m, partial molar volumes V m;i, limiting partial molar volumes V1m;i, thermal expansion coefficients a, and their excess values aE, and isothermal excess molar enthalpy pressure derivative ooHE m=oPPT ;x, were calculated from experimental densities. The binary data of V E m and aE were correlated as a function of the mole fraction by using the Redlich Kister type function to determine the fitting parameters and the standard deviations. The experimental data of the constituent binaries are analysed to discuss the nature and strength of intermolecular interactions in these mixtures.