Experimental Vapor Pressures of 2-Phenylethylamine, Benzylamine, Triethylamine, and cis-2,6-Dimethylpiperidine in the Range between 0.2 Pa and 75 kPa

In this study, we reported experimental vapor pressures of several amines presenting different molecular structures, 2-phenylethylamine, benzylamine, triethylamine and cis-2,6-dimethylpiperidine, using a static apparatus. The pressure range is comprised between 0.2 Pa and 75 kPa, and the temperature range is between (273 and 365) K. From the temperature dependence of the vapor pressures, the molar enthalpies of vaporization at the mean temperature of the experimental range were derived from the Clausius−Clapeyron equation. From these results, the standard enthalpies of vaporization at T = 298.15 K were calculated and compared with the open literature values.