Thermodynamic Measurements and Correlation of Properties for Tribromomethane

Abstract

Experimental saturated vapor pressure data were measured using a Modified Swietoslawski-type ebulliometer and correlated with the Antoine, Clarke–Glew, and Wagner equations. A least root-mean-square deviation (RMSD) was obtained for the Antoine (0.667) and Wagner (0.796) equations while the group contribution and group interaction (GCGI) method by Nanoolal et al. showed an RMSD of 1.094. The estimated enthalpy of vaporization is found to be 46.87 kJ·mol−1 and 38.56 kJ·mol−1 at reference temperature (298.15 K) and normal boiling point (422.28 K), respectively, and was well verified with Watson’s correlation. The critical properties and acentric factor are reported based on the GCGI method. Experimental density data are reported and are well correlated with the DIPPR 116 correlation with an RMSD of 0.00416. Joback’s method predicted the densities well with a maximum absolute deviation (MAD) of 0.00548. The Vogel–Tamman–Fulcher equation correlated the experimental viscosities in the temperature range of 288.15–338.15 K with a MAD of 0.002. The isothermal expansivity for tribromomethane shows a linear trend with a weak temperature dependency.