The densities, rho, of binary mixtures of butyl acrylate (BA) with benzene, toluene, o-xylene, m-xylene, p-xylene, and mesitylene, including those of pure liquids, over the entire composition range were measured at the temperatures (288.15, 293.15, 298.15, 303.15, 308.15, 313.15, and 318.15) K and atmospheric pressure. From the experimental data, the excess molar volumes, V-m(E) were calculated. The V-m(E) values were negative over the whole composition range for all the mixtures and at each temperature studied, except for BA + mesitylene which exhibit positive V-m(E) values, indicating the presence of specific interactions between BA and aromatic hydrocarbon molecules. The deviations in V-m(E) values follow the order: benzene<toluene<p-xylene<m-xylene<o-xylene<mesitylene. It is observed that V-m(E) values depend upon the number and position of the methyl groups in these aromatic hydrocarbons.