Molar enthalpies of sublimation and molar enthalpies of vaporization of 2-, 3-, and 4-chloro-aminobenzene, and 3,4-di-chloro-aminobenzene, as well as of 2-, 3-, and 4-chloro-nitrobenzene, and 3,4-di-chloro-nitrobenzene were obtained from the temperature dependence of the vapor pressure measured by the transpiration method. The molar enthalpies of fusion of these compounds were measured by DSC. The measured data sets of vaporization, sublimation and fusion enthalpies were checked for internal consistency. (C) 2003 Elsevier Science B.V. All rights reserved.