Viscosities, densities, speeds of sound and refractive indices of binary mixtures of o-xylene, m-xylene, p-xylene, ethylbenzene and mesitylene with 1-decanol at 298.15 and 308.15 K

The viscosities eta, densities rho, speeds of sound u and refractive indices no of binary mixtures of 1-decanol with o-xylene, m-xylene, p-xylene, ethylbenzene and mesitylene have been measured over the entire range of composition at 298.15 and 308.15 K and at atmospheric pressure. Excess molar volumes V-E, deviations of isentropic compressibilities Delta kappa, deviations of the speeds of sound Delta u, viscosity deviations Delta eta, excess free energies of activation for viscous flow Delta G*(E) and deviations of refractive indices Delta n(D) have been calculated from the density rho, speed of sound u, viscosity eta and refractive index n(D) data. The calculated excess and deviation functions have been fitted to the Redlich-Kister polynomial equations and the results analyzed in terms of molecular interactions and structural effects. The viscosity data have been correlated using McAllister's three body interaction model at different temperatures. (C) 2010 Elsevier B.V. All rights reserved.