Determination of Henry's law constants of organics in dilute aqueous solutions

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Journal of Chemical and Engineering Data; (United States)

DOI:https://doi.org/10.1021/je00012a017· OSTI ID:5620600

Hansen, K C; Zhou, Zhou; Yaws, C L; Aminabhavi, T M ^[1]

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1. Lamar Univ., Beaumont, TX (United States). Dept. of Chemistry

Accurate knowledge of Henry's law constants, H, or air/water partitioning coefficients are required to predict the behavior of organic compounds in the environment. In particular, when the compounds are relatively volatile and exhibit low solubility in water, air stripping may be a viable method for above-ground treatment. Henry's law constants of 15 volatile organic compounds in dilute aqueous solutions were measured by the procedure of equilibrium partitioning in a closed system. The method is based upon the measurement of the headspace concentration by gas chromatography. The compounds investigated included six halogenated hydrocarbons, four aromatic hydrocarbons, and five alkanes. The measurements were made at three temperatures between 25 and 45 C. The measured Henry's law constants compared well with the literature data of some liquids. The temperature dependence of Henry's law constant was also studied from the van't Hoff relation.

• OSTI ID: 5620600
• Journal Information: Journal of Chemical and Engineering Data; (United States), Journal Name: Journal of Chemical and Engineering Data; (United States) Vol. 38:4; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ALKANES
AROMATICS
ENVIRONMENTAL TRANSPORT
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
LAND POLLUTION
MANAGEMENT
MASS TRANSFER
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION
PROCESSING
SOILS
THERMODYNAMIC PROPERTIES
WASTE MANAGEMENT
WASTE PROCESSING
WATER