Molar excess volumes of ternary mixtures containing ether

摘要

Molar excess volumes (V_(ijk)~E) of 1,3-dioxolane (i) + benzene (j) + cyclohexane (k); 1,3-dioxolane (i) + benzene (j) + n-bexane (k); and 1,3-dioxolane (i) + benzene (j) + benzene (j) + n-heptane (k) ternary mixtures have been measured dilatometrically as a function of composition at 298.15 K. The observed data have been analysed in terms of (i) Graph theoretical approach; (ii) Flory's theory; and (iii) Lacombe and Sanchez's theory of liquid mixtures. It has been observed that V_(ijk)~E values predicted by graph theoretical apporach compare better with the corresponding experimental values than with the V_(ijk)~E data predicted by other approaches.