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Empirical method for estimation of Henry's law constant of non-electrolyte organic compounds in water

Abstract : Henry's law constant is a significant parameter in description of the phase behaviour of the dilute aqueous solutions. In this communication, a reliable empirical method is proposed for representing/predicting the Henry's law constant (HLC) of 1816 non-electrolyte organic compounds from different chemical families in water within the (293.15 to 298.15) K temperature range. The normal boiling point temperature, critical pressure, number of phenol/enol/carboxyl OH, hydrogen atoms attached to carbon atom, aliphatic groups attached to OH bond, hydrogen atoms attached to carbon atom with hybridisation sp(3) in each compound, and existences of C-N and C-O bonds in each molecule are applied as the parameters of this correlation. The overall absolute average deviation observed on the calculated and predicted Henry's constant values with respect to experimental ones is about 10% (based on logarithm of HLC values). The simple correlation presented here can be easily applied for rapid estimation of the Henry's law constants of many of commonly-used organic compounds in water at specified conditions.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00667607
Contributeur : Bibliothèque Mines Paristech <>
Soumis le : mercredi 8 février 2012 - 09:04:54
Dernière modification le : jeudi 24 septembre 2020 - 17:22:04

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  • HAL Id : hal-00667607, version 1

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Farhad Gharagheizi, Ali Eslamimanesh, Amir H. Mohammadi, Dominique Richon. Empirical method for estimation of Henry's law constant of non-electrolyte organic compounds in water. Journal of Chemical Thermodynamics, Elsevier, 2012, 47, pp.295-299. ⟨hal-00667607⟩

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