화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.16, No.4, 629-633, July, 2010
Determination and prediction of K(ow) and dimensionless Henry’s constant (H) for 6 ether compounds at several temperatures
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The octanol.water partition coefficient (K(ow)) and air.water partition coefficient (K(aw)) as well as the dimensionless Henry’s constant (H) are used to calculate the transport and fate of chemicals in the environment or eco-system. In this work, the K(ow) and the H weremeasured for 6 ether compounds; di-nbutyl ether (DBE), di-isopropyl ether (DIPE), tert-butyl ethyl ether (ETBE), tert-butyl methyl ether (MTBE), propyl vinyl ether (PVE) and tert-amyl methyl ether (TAME) at 4 different temperatures. The K(ow) was directly measured by using a conventional slow stirring (SS) method, while the H was measured using headspace gas chromatography (HSGC). Additionally, the measured K(ow) and H values were compared with the predicted values by the fragment constant method or HENRYWIN program approaches.
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