Journal of Chemical Thermodynamics, Vol.38, No.8, 1062-1071, 2006
Thermodynamic properties of (tetradecane plus benzene, plus toluene, plus chlorobenzene, plus bromobenzene, plus anisole) binary mixtures at T = (298.15, 303.15, and 308.15) K
Density rho, viscosity eta, and refractive index n(D), values for (tetradecane + benzene, + toluene, + chlorobenzene, + bromobenzene, + anisole) binary mixtures over the entire range of mole fraction have been measured at temperatures (298.15, 303.15, and 308.15) K at atmospheric pressure. The speed of sound u has been measured at T = 298.15 K only. Using these data, excess molar volume V-E, deviations in viscosity Delta(eta), Lorentz-Lorenz molar refraction Delta R, speed of sound Delta u, and isentropic compressibility Delta k(s) have been calculated. These results have been fitted to the Redlich and Kister polynomial equation to estimate the binary interaction parameters and standard deviations. Excess molar volumes have exhibited both positive and negative trends in many mixtures, depending upon the nature of the second component of the mixture. For the (tetradecane + chlorobenzene) binary mixture, an incipient inversion has been observed. Calculated thermodynamic quantities have been discussed in terms of intermolecular interactions between mixing components. (c) 2005 Elsevier Ltd. All rights reserved.