Henry's Law Constants

Rolf Sander

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Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Henry's Law Constants




Contact, Impressum, Acknowledgements

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 other elementsMercury (Hg) → dimethylmercury

CAS RN:593-74-8

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
1.3×10−3 2700 Talmi and Mesmer 1975 M
2.1×10−3 Abraham et al. 2008 C
1.3×10−3 2700 WHO 1990 C
1.0×10−3 3000 Abraham et al. 2008 Q 88)
1.5×10−3 Schroeder and Munthe 1998 ? 7)
1.3×10−3 2700 Schroeder and Munthe 1998 ? 7)
3.1×10−3 Iverfeldt and Persson 1985 ? 90)


  • Abraham, M. H., Gil-Lostes, J., Acree, Jr., W. E., Cometto-Muñiz, J. E., and Cain, W. S.: Solvation parameters for mercury and mercury(II) compounds: calculation of properties of environmental interest, J. Environ. Monit., 10, 435-442, doi:10.1039/B719685G, 2008.
  • Iverfeldt, Å. and Persson, I.: The solvation thermodynamics of methylmercury(II) species derived from measurements of the heat of solution and the Henry's law constant, Inorg. Chim. Acta, 103, 113-119, doi:10.1016/S0020-1693(00)87476-9, 1985.
  • Schroeder, W. H. and Munthe, J.: Atmospheric mercury - An overview, Atmos. Environ., 32, 809-822, doi:10.1016/S1352-2310(97)00293-8, 1998.
  • Talmi, Y. and Mesmer, R. E.: Studies on vaporization and halogen decomposition of methyl mercury compounds using gc with a microwave detector, Wat. Res., 9, 547-552, doi:10.1016/0043-1354(75)90080-9, 1975.
  • WHO: Environmental Health Criteria 101 - methylmercury, Tech. rep., World Health Organization,, 1990.


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.


7) Several references are given in the list of Henry's law constants but not assigned to specific species.
88) Calculated using linear free energy relationships (LFER).
90) More than one reference is given as the source of this value.

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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