Densities and surface tensions for binary systems of (1,2,4-trimethylbenzene or 1,3,5-trimethylbenzene + dimethyl carbonate or diethyl carbonate) have been measured under normal atmospheric pressure over the entire mole fraction range at 298.15 K and 313.15 K. The excess molar volumes and the surface tension deviation have been calculated. The excess molar volumes and the values of the surface tension deviation are fitted to the Redlich−Kister polynomial equation. The excess molar volumes for all the binary systems are positive over the whole composition range, and the surface tension deviations are negative.

Densities and surface tensions for binary mixtures of 1,2,4-trimethylbenzene and 1,3,5-trimethylbenzene with 1,1-diethoxyethane and 2,2-dimethoxypropane have been measured over the whole concentration range. Measurements were made under normal atmospheric pressure at (298.15, 308.15, and 313.15) K. The experimental data are used to calculate the excess molar volumes and the surface tension deviations, respectively.

Densities and surface tensions for the binary mixtures of 1,2,4-trimethylbenzene and 1,3,5-trimethylbenzene with isopropyl acetate and isobutyl acetate have been measured over the whole composition range. The measurements were made under normal atmospheric pressure and at the temperatures (298.15, 308.15, and 313.15) K. The excess molar volumes and surface tension deviations are derived from the experimental data. The excess molar volumes for all the binary systems are positive, and the surface tension deviations are negative.