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 speciesIodine (I) → iodine (molecular)

CAS RN:7553-56-2

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
2.8×10−2 4300 Eguchi et al. 1973 M
2.8×10−2 3900 Fogg and Sangster 2003 V
3.0×10−2 4400 Palmer et al. 1985 R
3.1×10−2 4600 Berdnikov and Bazhin 1970 R
3.2×10−2 4800 Wagman et al. 1982 T
1.1×10−2 Thompson and Zafiriou 1983 C 69)


  • 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.
  • Eguchi, W., Adachi, M., and Yoneda, M.: Dependency of partition equilibrium of iodine between air and aqueous solution containing sodium hydroxide upon temperature and concentration, J. Chem. Eng. Jpn., 6, 389-396, doi:10.1252/JCEJ.6.389, 1973.
  • Fogg, P. and Sangster, J.: Chemicals in the Atmosphere: Solubility, Sources and Reactivity, John Wiley & Sons, Inc., 2003.
  • Palmer, D. A., Ramette, R. W., and Mesmer, R. E.: The hydrolysis of iodine: Equilibria at high temperatures, J. Nucl. Mater., 130, 280-286, doi:10.1016/0022-3115(85)90317-4, 1985.
  • Thompson, A. M. and Zafiriou, O. C.: Air-sea fluxes of transient atmospheric species, J. Geophys. Res., 88C, 6696-6708, doi:10.1029/JC088IC11P06696, 1983.
  • Wagman, D. D., Evans, W. H., Parker, V. B., Schumm, R. H., Halow, I., Bailey, S. M., Churney, K. L., and Nuttall, R. L.: The NBS tables of chemical thermodynamic properties; Selected values for inorganic and C1 and C2 organic substances in SI units, J. Phys. Chem. Ref. Data, 11, suppl. 2, 1982.


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.


69) Thompson and Zafiriou (1983) quote a paper as the source that gives only the solubility but not the Henry's law constant.

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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