Experimental and predicted data of excess molar enthalpies and excess molar volumes for the ternary system (1,3-dichlorobenzene + benzene + 1-chlorohexane) at T = 298.15 K

•Experimental enthalpy and densitiy for the mixture 1,3-dichlorobenzene + benzene + 1-chlorohexane were measured.•The excess molar volumes were calculated from the densities of the pure liquids and their mixtures.•The Cibulka equation was used to correlate the ternary contribution of the excess molar properties.•The experimental data were used to test several empirical equations.

Experimental excess molar enthalpies, densities and excess molar volumes for the ternary system {x1 1,3-dichlorobenzene + x2 benzene + (1 − x1 − x2) 1-chlorohexane} have been determined at the temperature of 298.15 K and atmospheric pressure. Values of excess molar enthalpies were measured using a Calvet microcalorimeter, and excess molar volumes were determined from the densities of the pure liquids and mixtures, using a vibrating-tube densimeter. The results were fitted by means of different variable degree polynomials. Smooth representations of the results are presented and used to construct constant contours of excess molar enthalpy and excess molar volume on Roozeboom diagrams. Several empirical expressions that have been suggested for use with parameters and predicting excess properties of ternary mixtures from the experimental binary data were tested.

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