Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6659628 | The Journal of Chemical Thermodynamics | 2018 | 31 Pages |
Abstract
The vapor pressures and vaporization enthalpies of the three major components of bergamotene oil have been evaluated by correlation gas chromatography. Three major components were identified by GCMS as E β-caryophyllene, trans α-bergamotene and α-humulene. Two of the components, E β-caryophyllene and α-humulene were also evaluated using commercial caryophyllene samples. Z-caryophyllene, present in the commercial sample was also evaluated. Two sets of hydrocarbon standards, n-alkanes and a series of relatively unrelated cyclic compounds that included adamantane and two alkyl derivatives, (â) α-pinene, diamantane and 1,4-di-t-butylbenzene, were used. Vaporization enthalpies of the targets at Tâ¯=â¯298.15â¯K were reproduced within the specified uncertainties by both sets of standards as were vapor pressures from Tâ¯=â¯(298.15 to â¼400)K. Above 400â¯K, vapor pressures diverged. Equations for the evaluation of vapor pressure as a function of temperature are reported for all four compounds investigated.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Megan Orf, Manu Kurian, Lorna Espinosa, Carissa Nelson, Dan Simmons, James Chickos,