Vaporization Enthalpies and Vapor Pressures of 5α-Androstane and 5α-Cholestane by Correlation Gas Chromatography

Autor: Christian Fischer-Lodike, Mohammad Albinsaad, James S. Chickos
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Liquids, Vol 4, Iss 3, Pp 456-469 (2024)
Druh dokumentu: article
ISSN: 2673-8015
DOI: 10.3390/liquids4030025
Popis: Vaporization enthalpies and vapor pressures of 5α-androstane and 5α-cholestane are reported using correlation gas chromatography (CGC). The results for 5α-cholestane are compared to both estimated and experimental values reported previously for 5α-cholestane. The results are generally in agreement with the literature within the reported uncertainties. A simple method for reducing the amount of curvature in logarithm plots of vapor pressures as a function of K/T when using n-alkanes as standards in CGC experiments is also reported. This may prove useful in evaluating vapor pressures of rigid hydrocarbons at high temperatures.
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