Densities and refractive indices data for five binary systems of 2-butanone + 1-chloropentane, + 1,3-dichloropropane, + 1,4-dichlorobutane, + 1,1,1-trichloroethane, + 1,1,2,2-tetrachloroethane were measured at T = 298.15 K and atmospheric pressure, over the entire mole fraction range. The densities data of the studied mixtures have been used to calculate the excess molar volumes and the partial volumetric properties at infinite dilution. The refractive index data were used to calculate excess molar refractions and the deviations of experimental refraction indices from the predicted results were compared with those calculated using several mixing rules (Lorentz-Lorenz, Gladstone-Dale, Arago-Biot, Edwards, Eykman). The excess quantities were fitted to a Redlich-Kister type polynomial equation to derive the binary coefficients and estimate the standard deviations between the experimental and calculated quantities. The excess molar volumes and the excess molar refraction have evidenced intermolecular interactions between the components of mixtures. (C) 2014 Elsevier Ltd. All rights reserved.