Aqueous solubilities and infinite dilution activity coefficients of several polycyclic aromatic hydrocarbons
- Univ. of Delaware, Newark, DE (United States)
Determining the aqueous solubilities and infinite dilution activity coefficients of polycyclic aromatic hydrocarbons (PAHs) is important for environmental reasons. However, common methods for the measurement of infinite dilution activity coefficients, such as ebulliometry or gas chromatography, cannot be used for solutes that are only very slightly soluble in water and have very low vapor pressures, such as the PAHs. Here the authors report values of the aqueous infinite dilution activity coefficients of four polycyclic aromatic hydrocarbons obtained by measuring their very low aqueous solubilities and their enthalpies of fusion. The values of the infinite dilution activity coefficients they obtain range from 4.2 {times} 10{sup 5} for acenaphthene to 3.7 {times} 10{sup 8} for benzo[a]pyrene, with an average error of {+-}12.5%. The other two PAH used were anthracene and benz[a]anthracene.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 94342
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 40, Issue 4; Other Information: PBD: Jul-Aug 1995
- Country of Publication:
- United States
- Language:
- English
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