Mohammad S. Al Tuwaim, Adel S. Al-Jimaz, K. Alkhaldi
Mar 15, 2018
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0
Influential Citations
6
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Journal
Journal of Solution Chemistry
Abstract
Viscosities, η, and surface tensions, σ, of binary systems of phenetole (ethoxy benzene or ethyl phenyl ether) with N-methyl-2-pyrrolidone, N,N-dimethylformamide or with tetrahydrofuran were measured over the entire mole fraction range and at (298, 303 and 308) K. The experimental data was used to compute the deviations in viscosity, Δη, and surface tension, Δσ. Values of the excess Gibbs energy of activation G*E, surface entropy Sσ and surface enthalpy Hσ were calculated. Viscosity data of the binary systems were calculated using the Grunberg and Nissan and the three-body and four-body McAllister correlations. The Redlich–Kister method was used for evaluation of coefficients and standard deviations for Δη, Δσ and G*E. The results were interpreted in terms of the probable effect of molecular interactions between components as well as polarity.