Densities and viscosities of ten binary and ten ternary regular solution systems at 308.15 and 313.15 K

Abstract

The densities and kinematic viscosities of binary and ternary regular mixtures containing cyclohexane, m-xylene, chlorobenzene, cyclooctane and decane were measured over the entire composition range at 308.15K and 313.15K, respectively. The experimental results were used to test the predictive capability of the six viscosity models available in the literature; namely, the generalized McAllister three-body interaction model, the pseudo-binary McAllister model, the group contribution (GC-UNIMOD) model, the generalized corresponding states principle (GCSP) model, the Allan and Teja correlation and the Grunberg and Nissan law of viscosity. The percentage average absolute deviation (%AAD) was employed as the criterion for comparing the predictive capabilities of the aforementioned models. The experimental pure component data obtained in the present study agreed well with the corresponding literature values at both designated temperatures. The model testing results showed that the generalized McAllister showed the best predictive capability resulting in the lowest %AADs; viz., 3.3 and 3.7 at 308.15K and 313.15K, respectively.