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2128518 
Journal Article 
Experimental Method for Estimating Henry's Law Constant of Volatile Organic Compound 
Zhang, W; Huang, L; Yang, C; Ying, W 
2013 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
25 
5 
2647-2650 
English 
WOS:000317245800064 
A simple experimental method for estimating the Henry's law constant of a volatile organic compound in water is presented based on the Henry's law constant definition, measuring the equilibrium liquid phase concentration of a closed system partially filled with the volatile organic compound solution provides the necessary data for calculating its Henry's law constant of the test conditions. The experimental Henry's law constants of methyl-tert-butyl ether, benzene, toluene, ethyl benzene, xylene were reproducible; the experimental Henry's I law constants Of those volatile Organic Compounds; nitrobenzene and trichloroethylene were in general agreements with corresponding estimates of the empirical methods of ratio of vapour pressure to :water solubility, the Yaws method and the HENRYWIN program methods as well as the literature data. The Henry's law constants of several volatile organic compounds confirmed the expected effects of temperature and non volatile solvent methanol. The method of this study can be employed to estimate the Henry's law constant of a volatile organic compound at a specific temperature and sample composition. 
Henry's law constant; Water solubility; Vapour pressure; Volatile organic compound; Methyl-tert-butyl ether