Densities and derived thermodynamic properties of binary mixtures of diethylcarbonate, acetophenone, and 1-hexanol at T = (293.15 to 323.15) K for the liquid region and at ambient pressure

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-m(E), partial molar volumes (V) over bar (m,i), limiting partial molar volumes V thermal expansion coefficients a, and their excess values alpha(E), and isothermal excess molar enthalpy-pressure sure derivative (partial derivative H-m(E)/partial derivative P)(T,x), were calculated from experimental densities. The binary data of V-m(E) aE M M and 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. (c) 2007 Elsevier Ltd. All rights reserved.