Home|Journals|Articles by Year|Audio Abstracts
 

Research Article

ECB. 2020; 9(10): 317-328


CALCULATION OF ABRAHAM MODEL L-DESCRIPTOR AND STANDARD MOLAR ENTHALPIES OF VAPORIZATION AND SUBLIMATION FOR C9 - C26 MONO-ALKYL ALKANES AND POLYMETHYL ALKANES

Priya Tirumala, Jennifer Huang, Shrika Eddula, Carina Jiang, Angelina Xu, Grace Liu, William E. Acree Jr, Michael H. Abraham.




Abstract

Abraham model L solute descriptors have been determined for 127 additional mono-alkyl alkanes and polymethyl alkanes based on published gas chromatographic retention indices for solutes eluted from a fused-silica capillary column coated with a cross-lined methyl silicone stationary phase. Standard molar enthalpies of vaporization and sublimation at 298 K are calculated for the 127 mono-alkyl alkanes and polymethyl alkanes using the reported solute descriptors and our recently published Abraham model correlations. Calculated vaporization and sublimation enthalpies derived from the Abraham model compare very favourably with values based on a popular atom-group additivity model.

Key words: Abraham model; solute descriptors; enthalpy of vaporization; enthalpy of sublimation; Kovats retention indices.






Full-text options


Share this Article


Online Article Submission
• ejmanager.com


ejPort - eJManager.com
Refer & Earn
JournalList
 About BiblioMed
License Information
Terms & Conditions
Privacy Policy
 Contact Us

The articles in Bibliomed are open access articles licensed under Creative Commons Attribution 4.0 International License (CC BY), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.