Henry's law constants of chlorinated ethylenes in aqueous alcohol solutions: Measurement, estimation, and thermodynamic analysis

Tsutomu Shimotori, William A. Arnold

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Henry's law constants of tetrachloroethylene, trichloroethylene, cis-dichloroethylene, and trans-dichloroethylene in air-aqueous alcohol systems were measured. Ethanol, 1-propanol, and 2-propanol were employed as cosolvents. Alcohol concentrations ranged from 0 to 20 vol %. Measurements were taken at temperatures from 0.2 to 70.0 °C. Using the experimental results, equations for the estimation of Henry's law constant as a function of both temperature and alcohol concentration were constructed. In addition, the Gibbs free energy (ΔdisG), enthalpy (ΔdisH), entropy (ΔdisS), and heat capacity change (ΔdisCp) associated with dissolution (solution to gas transfer) were derived by employing a linear regression analysis of the temperature dependence of the Henry's law constant.

Original languageEnglish (US)
Pages (from-to)183-190
Number of pages8
JournalJournal of Chemical and Engineering Data
Volume47
Issue number2
DOIs
StatePublished - Mar 1 2002

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