Densities, viscosities and ultrasound velocities for binary mixtures of isopropylethanoate and non-polar hydrocarbon solvents

Densities (ρ), viscosities (η), and ultrasound velocities(u) for binary mixtures of isopropylethanoate and non-polar hydrocarbon solvents viz cyclohexane, benzene,1,4-dimethylbenzene and 1,3,5-trimethylbenzene have been measured at 308.15 K.Adiabatic compressibilities(βad), available volume(Va) and acoustical impedance(Z) for the binary mixtures are evaluated from the ultrasound velocity and density data. Deviations in viscosity (Δη), in ultrasound velocity (Δu) and in compressibility (Δβad) from their additive values for all the systems studied are evaluated from the experimental values for the mixtures and their components at experimental temperature. ∆η and ∆u values are negative and ∆βad are positive for cyclohexane + isopropylethanoate binary mixture. Several models for mixture viscosity are analysed. The strength of interactions are discussed in terms of Grunberg and Nissan interaction parameter (d). Hind-McLaughlin-Ubbelohde viscosity equation is found to be most suitable for the viscosities of the binary mixtures studied. Results are discussed in terms of interactions between components of the mixtures.