Volumetric and viscometric studies of binary and ternary mixtures of nitrobenzene with 1,4-dioxane, benzene, toluene and carbon tetrachloride at 303.15 K

Department of Chemistry, Agra College, Agra-282 002, Uttar Pradesh, India

E-mail : mukhtarsingh2003@rediffmail.com

Manuscript received 10 May 2005, revised 14 November 2005, accepted 1 December 2005

Densities and viscosities of binary and ternary mixtures of nitrobenzene with 1,4-dioxane, benzene, toluene
and carbon tetrachloride have been measured at 303.15 K. Viscosity deviations (Δƞ) and excess thermodynamic properties viz. excess molar volume (V^E) and excess Gibbs free energy of activation of viscous flow (ΔG^#E) have been calculated from experimental data in respect of binary and ternary mixtures at 303.15 K, and fitted by Redlich-Kister and Cibulka equations respectively. From the small magnitude of the values of standard deviation it is concluded that the experimental values of Δƞ, V^E and ΔG^#E compare fairly well with the corresponding theoretical values predicted by Redlich-Kister and Cibulka equations for binary and ternary mixtures respectively.