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Henry's Law Constants

www.henrys-law.org

Rolf Sander

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


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Henry's Law Constants

Notes

References

Errata

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When referring to the compilation of Henry's Law Constants, please cite this publication:

R. Sander: Compilation of Henry's law constants (version 4.0) for water as solvent, Atmos. Chem. Phys., 15, 4399-4981 (2015), doi:10.5194/acp-15-4399-2015


Henry's Law ConstantsOrganic species with chlorine (Cl)Oxygenated chlorocarbons (C, H, O, Cl) → trichloroethanal

FORMULA:CCl3CHO
TRIVIAL NAME: trichloroacetaldehyde; chloral
CAS RN:75-87-6
STRUCTURE
(FROM NIST):
InChIKey:HFFLGKNGCAIQMO-UHFFFAOYSA-N

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
3.4×103 3500 Betterton and Hoffmann 1988 M 192)
1700 Kühne et al. 2005 Q
1.7×103 Meylan and Howard 1991 Q
3500 Kühne et al. 2005 ?

References

  • Betterton, E. A. and Hoffmann, M. R.: Henry's law constants of some environmentally important aldehydes, Environ. Sci. Technol., 22, 1415-1418, doi:10.1021/ES00177A004, 1988.
  • Kühne, R., Ebert, R.-U., and Schüürmann, G.: Prediction of the temperature dependency of Henry's law constant from chemical structure, Environ. Sci. Technol., 39, 6705-6711, doi:10.1021/ES050527H, 2005.
  • Meylan, W. M. and Howard, P. H.: Bond contribution method for estimating Henry's law constants, Environ. Toxicol. Chem., 10, 1283-1293, doi:10.1002/ETC.5620101007, 1991.

Type

Table entries are sorted according to reliability of the data, listing the most reliable type first: L) literature review, M) measured, V) VP/AS = vapor pressure/aqueous solubility, R) recalculation, T) thermodynamical calculation, X) original paper not available, C) citation, Q) QSPR, E) estimate, ?) unknown, W) wrong. See Section 3.1 of Sander (2015) for further details.

Notes

192) Effective value that takes into account the hydration of the aldehyde:
H= ([RCHO]+[RCH(OH)2])/p(RCHO)

The numbers of the notes are the same as in Sander (2015). References cited in the notes can be found here.

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