Information Services banner Edinburgh Research Archive The University of Edinburgh crest

Edinburgh Research Archive >
Chemistry, School of >
Chemistry publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1842/836

This item has been viewed 32 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
Heal2002a.pdf339.39 kBAdobe PDFView/Open
Title: Experimentally determined Henry's law coefficient of phenol, 2-methylphenol and 2-nitrophenol in the temperature range 281-302 K
Authors: Harrison, Mark A J
Issue Date: 2002
Citation: Harrison, M. A. J., Cape, J. N. and Heal, M. R. (2002) Experimentally determined Henry's law coefficient of phenol, 2-methylphenol and 2-nitrophenol in the temperature range 281-302 K, Atmospheric Environment 36, 1843-1851
Publisher: Elsevier
Abstract: The Henry's Law coefficient is a key physical parameter in the partitioning, and hence environmental fate, of a chemical species between air and water. Despite the acknowledged polluting potential of phenol, 2-methylphenol (o-cresol) and 2- nitrophenol, there is extremely poor agreement in the literature of their Henry's law coefficients and, in particular, no apparent systematic measurement of the variation with temperature. Here, a temperature-controlled column-stripping method was employed to determine Henry's Law coefficients for these compounds over the temperature range 281–302 K. Coefficients were derived from regression fits to the observed rates of losses from the liquid phase as a function of column depth in order to explicitly take account of potential non-attainment of equilibrium between liquid and gas phases. Temperature dependent expressions summarising the Henry's Law coefficients of phenol, o-cresol and 2-nitrophenol over the stated temperature range are ln H(Matm−1)=5850/T−11.6, ln H(Matm−1)=6680/T−15.4 and ln H(Matm−1)=6270/T−16.6, respectively (to within 15% of all measured values in this work). A thorough comparison with the previous literature-published values has been undertaken.
Keywords: Partitioning
Temperature dependence
Aqueous solubility
URI: DOI: 10.1016/S1352-2310(02)00137-1
http://hdl.handle.net/1842/836
Appears in Collections:Chemistry publications

Items in ERA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Unless explicitly stated otherwise, all material is copyright © The University of Edinburgh 2013, and/or the original authors. Privacy and Cookies Policy