Vaporization thermodynamics of normal alkyl phenones

•Vapor pressures of three long-chain alkyl phenones were measured at 315 – 475 K.•Literature data on vaporization of short-chain alkyl phenones were critically analyzed.•Dependence of enthalpy and Gibbs energy of vaporization on alkyl chain length was established.•Thermodynamic parameters of vaporization of C1-C20 alkyl phenones were predicted. In this work, the literature data, experimental measurements and structure–property relationships were combined to obtain reliable vaporization characteristics of the homologous series of linear alkyl phenones. We critically analyzed the available literature vapor pressures and vaporization enthalpies of acetophenone, propiophenone, and heptanophenone, performed vapor pressure measurements of hexano-, octano- (by transpiration method) and octadecanophenone (by TG-FSC method) and established a linear dependence of the enthalpy and Gibbs free energy of vaporization on the chain length. These quantities in combination with the Clarke-Glew equation enable accurate estimation of P – T dependences along the saturation curve. The quantities obtained were verified by comparison between the calculated and experimental data for the less studied homologs and showed quality comparable with the experiment.