Excess molar volumes of ternary liquid mixtures composed of 1, 4-dioxane, o-toluidine, and aromatic hydrocarbon at temperature of 308.15 K

Abstract

Excess molar volumes, V ijk E , of 1,4-dioxane ( i) + o-toluidine ( j) + benzene or toluene or m- or p-xylene ( k) ternary mixtures have been measured dilatometrically as a function of composition at 308.15 K. The resulting V ijk E data have been fitted to Redlich–Kister equation to evaluate ternary adjustable parameters and standard deviations σ( V ijk E ). The observed V ijk E data have been analyzed in terms of (i) Graph theory; and (ii) Prigogine–Flory–Patterson theory. It has been observed that Graph theory correctly predicts the sign and magnitude of V ijk E values.