Counterflow Method for Measurement of Henry’s Law Constants
Publication: Journal of Environmental Engineering
Volume 129, Issue 12
Abstract
Accurate knowledge of Henry’s law constants of chemicals under environmental conditions can be important for design of treatment systems, and for understanding the fate of chemicals in the environment. A new counterflow method has been developed for measurement of Henry’s law constants. The method makes use of a small-diameter packed column air stripper, and Henry’s law constant determinations are based on the mass balance equations for counterflow air strippers. Preliminary experimental tests with the method show good agreement with literature values for the Henry’s law constants of isopropanol and methyl tert-butyl ether. As described here, the method is best suited to the analysis of compounds with low to moderate volatility values ranging from approximately to dimensionless).
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Published In
Journal of Environmental Engineering
Volume 129 • Issue 12 • December 2003
Pages: 1169 - 1175
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jul 15, 2002
Accepted: Feb 21, 2003
Published online: Nov 14, 2003
Published in print: Dec 2003
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