Vapor pressure and enthalpy of vaporization of oil of catnip by correlation gas chromatography

2016 ◽  
Vol 92 ◽  
pp. 126-131 ◽  
Author(s):  
Daniel Simmons ◽  
Chase Gobble ◽  
James Chickos
Keyword(s):  
Gas Chromatography ◽  
Vapor Pressure ◽  
Enthalpy Of Vaporization ◽  
Correlation Gas Chromatography

scholarly journals Vaporization Enthalpies and Vapor Pressures of the Major Components of Opopanax Oil, α-Santalene, cis α Bisabolene, cis α-Bergamotene,

2021 ◽  
Author(s):  
Dustin Barton ◽  
James S Chickos
Keyword(s):  
Gas Chromatography ◽  
Vapor Pressure ◽  
Elevated Temperatures ◽  
Vapor Pressures ◽  
Polycyclic Hydrocarbons ◽  
Ambient Temperatures ◽  
Correlation Gas Chromatography ◽  
Existing Data

Abstract The vapor pressures and vaporization enthalpies of the major components of opopanax oil, a medicinal that has been in use since biblical times, are evaluated by correlation gas chromatography. Two sets of hydrocarbon standards are used, n-alkanes and a mixture of cyclic and polycyclic hydrocarbons. Two of the oil’s sesquiterpene components, evaluated in a previous study, were used both as standards and also as targets. Their use as targets was in an effort to confirm both their identity in the oil and the reproducibility of their properties. All correlations produce reproducible vaporization enthalpies and vapor pressures at ambient temperatures. At elevated temperatures, the use of the two different sets of standards resulted in some divergence in vapor pressure. Experiments are described aimed at attenuating this divergence. The results are compared to existing data.

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