Refractive indices and their related properties for several binary mixtures containing cyclic ketones and chloroalkanes

Abstract

Experimental refractive index data for eleven binary systems of cyclopentanone+1,2-dichloroethane, +1,3-dichloropropane, +1,4-dichlorobutane, +trichloromethane, +1,1,1-trichloroethane and cyclohexanone+1-chlorobutane, +1,2-dichloroethane, +1,3-dichloropropane, +1,4-dichlorobutane, +trichloromethane, and +1,1,1-trichloroethane, at T=298.15K and atmospheric pressure, over the entire mole fraction range are reported. The excess refractive index, nDE, molar refraction, R, and excess molar refraction, RE, were calculated from the experimental data. The ability of different theoretical (nD, ρ) mixing rules (Lorentz–Lorenz, Gladstone–Dale, Arago–Biot, Edwards and Eykman) to predict the refractive indices are evaluated. The experimental density data of the studied mixtures, previously measured, were used to calculate the partial and apparent volumetric properties at infinite dilution. Moreover, from these density data, the surface tensions and the surface tension deviations for mixtures were predicted. The excess molar quantities have evidenced intermolecular interactions between the components of mixtures.