Viscosities and Surface Tensions of Phenetole with N-Methyl-2-pyrrolidone, N,N-Dimethylformamide and Tetrahydrofuran Binary Systems at Three Temperatures

• Published in: Journal of solution chemistry 2018-03, Vol.47 (3), p.449-467
• Main Authors: Al Tuwaim, Mohammad S., Al-Jimaz, Adel S., Alkhaldi, Khaled H. A. E.
• Format: Article
• Language: English
• Subjects: Activation energy; Benzene; Binary systems; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Enthalpy; Entropy of activation; Geochemistry; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Mathematical analysis; Molecular interactions; Oceanography; Physical Chemistry; Polarity; Surface tension; Tetrahydrofuran; Viscosity
• ISSN: 0095-9782; 1572-8927
• DOI: 10.1007/s10953-018-0731-2

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, Δ η , and surface tension, Δ σ . Values of the excess Gibbs energy of activation G* E , surface entropy S σ and surface enthalpy H σ 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 Δ η , Δ σ and G* E . The results were interpreted in terms of the probable effect of molecular interactions between components as well as polarity.