Abraham Model Expressions for Describing Water-to-Diethylene Glycol and Gas-to-Diethylene Glycol Solute Transfer Processes at 298.15 K

A gas chromatographic headspace analysis method was used to experimentally determine gas-to-liquid partition coefficients and infinite dilution activity dilution for 14 different aliphatic and cyclic hydrocarbons (alkanes, cycloalkanes, alkenes, alkynes), eight different aromatic compounds (benzene,...

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Bibliographic Details
Published in:Journal of solution chemistry 2017-02, Vol.46 (2), p.331-351
Main Authors: Sedov, Igor A., Magsumov, Timur I., Hart, Erin, Higgins, Elizabeth, Grover, Damini, Zettl, Heidi, Zad, Minaz, Acree, William E., Abraham, Michael H.
Format: Article
Language:English
Subjects:
Acetonitrile
Alkanes
Alkylbenzenes
Alkynes
Aromatic compounds
Benzene
Benzoic acid
Chemistry
Chemistry and Materials Science
Chloroform
Condensed Matter Physics
Cyclic hydrocarbons
Dichloromethane
Dilution
Gas chromatography
Geochemistry
Halobenzenes
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Nonelectrolytes
Oceanography
Organochlorine compounds
Physical Chemistry
Polycyclic aromatic hydrocarbons
Solubility
Tetrahydrofuran
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Summary:A gas chromatographic headspace analysis method was used to experimentally determine gas-to-liquid partition coefficients and infinite dilution activity dilution for 14 different aliphatic and cyclic hydrocarbons (alkanes, cycloalkanes, alkenes, alkynes), eight different aromatic compounds (benzene, alkylbenzenes, halobenzenes), five different chloroalkanes (dichloromethane, trichloromethane, 1-chlorobutane, 1,2-dichloropropane, isopropylbromide), tetrahydrofuran, butyl acetate, and acetonitrile dissolved in diethylene glycol at 298.15 K. Solubilities were also measured at 298.15 K for 31 crystalline nonelectrolyte organic solutes including several polycyclic aromatic hydrocarbons and substituted benzoic acid derivatives. The experimental results of the headspace chromatographic and spectroscopic solubility measurements were converted to gas-to-diethylene glycol and water-to-diethylene glycol partition coefficients, and molar solubility ratios using standard thermodynamic relationships. Expressions were derived for solute transfer into diethylene glycol from the calculated partition coefficients and solubility ratios. Mathematical correlations based on the Abraham model describe the observed partition coefficient and solubility data to within 0.14 log 10 units (or less).
ISSN:0095-9782
1572-8927
DOI:10.1007/s10953-017-0579-x