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 ConstantsInorganic speciesChlorine (Cl) → chlorine atom

CAS RN:22537-15-1

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
2.3×10−2 Sander et al. 2011 L
2.3×10−2 Sander et al. 2006 L
2.0×10−3 Mozurkewich 1986 T 49)
1.5×10−4 1500 Berdnikov and Bazhin 1970 T 11)


  • Berdnikov, V. M. and Bazhin, N. M.: Oxidation-reduction potentials of certain inorganic radicals in aqueous solutions, Russ. J. Phys. Chem., Engl. Transl., 44, 395-398, 1970.
  • Mozurkewich, M.: Comment on "Possible role of NO3 in the nighttime chemistry of a cloud" by William L. Chameides, J. Geophys. Res., 91D, 14 569-14 570, doi:10.1029/JD091ID13P14569, 1986.
  • Sander, S. P., Friedl, R. R., Golden, D. M., Kurylo, M. J., Moortgat, G. K., Keller-Rudek, H., Wine, P. H., Ravishankara, A. R., Kolb, C. E., Molina, M. J., Finlayson-Pitts, B. J., Huie, R. E., and Orkin, V. L.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation Number 15, JPL Publication 06-2, Jet Propulsion Laboratory, Pasadena, CA,, 2006.
  • Sander, S. P., Abbatt, J., Barker, J. R., Burkholder, J. B., Friedl, R. R., Golden, D. M., Huie, R. E., Kolb, C. E., Kurylo, M. J., Moortgat, G. K., Orkin, V. L., and Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 17, JPL Publication 10-6, Jet Propulsion Laboratory, Pasadena,, 2011.


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.


11) Calculated from correlation between the polarizabilities and solubilities of stable gases. The temperature dependence is an estimate of the upper limit.
49) Calculated from the free energy of solution by Schwarz and Dodson (1984).

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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