International Journal of Thermophysics

, Volume 25, Issue 6, pp 1835–1847 | Cite as

Densities, Viscosities, and Refractive Indices of Binary Mixtures of Benzene with Isomeric Butanols at 30°C

  • A. Ali
  • A. K. Nain
  • B. Lal
  • D. Chand


The densities, ρ, viscosities, η, and refractive indices, n, of binary mixtures of benzene with 1-butanol, 2-methyl-1-propanol, 2-butanol, and 2-methyl-2-propanol, including those of the pure liquids, were measured over the complete composition range at 30°C. The dependence of ρ, η, and n on composition was checked by using an empirical relation. The experimental data were used to calculate excess molar volumes, VE, deviations in viscosity, Δ η, excess free energies of activation of viscous flow, G*E, deviations in refractive index, Δn, apparent molar volumes, Vϕ,1 and Vϕ, 2, and partial molar volumes, Open image in new window , of benzene in alcohols and alcohols in benzene, respectively, at infinite dilution. The variations of these parameters with composition and the effect of branching in alcohols were discussed from the point of view of intermolecular interactions in these mixtures.


1-butanol 2-methyl-1-propanol 2-butanol 2-methyl-2-propanol benzene density binary mixtures viscosity refractive index molecular interactions 


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Copyright information

© Springer Science+Business Media, Inc. 2004

Authors and Affiliations

  1. 1.Department of ChemistryJamia Millia Islamia (Central University)Jamia Nagar, New DelhiIndia

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