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Am Ind Hyg Assoc J

Title:		Effect of relative humidity on the adsorption of selected water-miscible organic vapors by activated carbon
Author(s):		Kawar KH; Underhill DW;
Address:		"Tammer Sciences, Inc., Naperville, IL 60564, USA"
Journal Title:		Am Ind Hyg Assoc J
Year:		1999
Volume:		60
Issue:		6
Page Number:		730 - 736
DOI:		10.1080/00028899908984495
ISSN/ISBN:		0002-8894 (Print) 0002-8894 (Linking)
Abstract:		"The adsorptive capacity of activated charcoal was determined experimentally for the vapors of 2-ethoxyethanol, pyridine, acetic acid, and piperidine from dry air and from air saturated with water vapor. Vapor concentrations ranged from 100 mg/m3 to at least 1000 mg/m3; the temperature was kept constant at 25 degrees C. The reduction in the adsorptive capacity of the activated charcoal by the relative humidity over the entire range of experimental conditions was accounted for by the Hansen-Fackler modification of the Dubinin-Radushkevich equation. This procedure allows the use of the activity coefficients, which are basic thermodynamic factors often available in the literature, to estimate the effect of adsorbed moisture on the adsorption of these organic compounds from a humidified atmosphere"
Keywords:		Acetic Acid/chemistry Adsorption Air Pollutants/*chemistry Charcoal/*chemistry Ethylene Glycols/chemistry Humans *Humidity Organic Chemicals/*chemistry Piperidines/chemistry Pyridines/chemistry Volatilization;
Notes:		"MedlineKawar, K H Underhill, D W eng 1 RO1 OHO1644-01/OH/NIOSH CDC HHS/ Research Support, U.S. Gov't, P.H.S. 2000/01/15 Am Ind Hyg Assoc J. 1999 Nov-Dec; 60(6):730-6. doi: 10.1080/00028899908984495"