Densities and refractive indices of binary mixtures of isopropylethanoate with several symmetrical hydrocarbons viz cyclohexane, benzene, 1,4-dimethylbenzene and 1,3,5-trimethylbenzene at 308.15 K have been measured. The excess molar volumes (V-E) are evaluated from the measured density values for the four binary systems. Experimental refractive indices are used to evaluate deviation in refractive indices (Delta n) and molar refraction at experimental temperature. VE values are positive for the mixtures studied except binary mixtures between ester and 1,4-dimethylbenzene which have negative V-E values. Standard deviations sigma(V-E) and sigma(Delta n) are also reported. Results are discussed in terms of molecular interactions between the components of the mixtures.