Isothermal vapour-liquid equilibrium (VLE) data are reported for binary mixtures containing 5-chloropentan-2-one with n-hexane (from 323.15 to 353.15 K), and toluene or ethylbenzene (from 343.15 to 373.15 K). The data are complemented by excess molar volumes (VE) Obtained from density measurements at 298.15 K over the whole composition range. The VLE and VE experimental data are correlated by means of the Redlich-Kister equation using the maximum Likelihood procedure.