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 speciesNitrogen (N) → nitrous acid

CAS RN:7782-77-6

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
4.8×10−1 4800 Schwartz and White 1981 L
4.7×10−1 4900 Becker et al. 1998 M
4.7×10−1 4900 Becker et al. 1996 M
4.8×10−1 4900 Park and Lee 1988 M
3.7×10−1 9000 Komiyama and Inoue 1978 M
4.7×10−1 4700 Martin 1984 T
4.8×10−1 4800 Chameides 1984 T
4.8×10−1 Seinfeld 1986 ? 7)


  • Becker, K. H., Kleffmann, J., Kurtenbach, R., and Wiesen, P.: Solubility of nitrous acid (HONO) in sulfuric acid solutions, J. Phys. Chem., 100, 14 984-14 990, doi:10.1021/JP961140R, 1996.
  • Becker, K. H., Kleffmann, J., Negri, R. M., and Wiesen, P.: Solubility of nitrous acid (HONO) in ammonium sulfate solutions, J. Chem. Soc. Faraday Trans., 94, 1583-1586, doi:10.1039/A800458G, 1998.
  • Chameides, W. L.: The photochemistry of a remote marine stratiform cloud, J. Geophys. Res., 89D, 4739-4755, doi:10.1029/JD089ID03P04739, 1984.
  • Komiyama, H. and Inoue, H.: Reaction and transport of nitrogen oxides in nitrous acid solutions, J. Chem. Eng. Jpn., 11, 25-32, doi:10.1252/JCEJ.11.25, 1978.
  • Martin, L. R.: Kinetic studies of sulfite oxidation in aqueous solution, in: SO2, NO and NO2 Oxidation Mechanisms: Atmospheric Considerations, edited by Calvert, J. G., pp. 63-100, Butterworth Publishers, Boston, MA, 1984.
  • Park, J.-Y. and Lee, Y.-N.: Solubility and decomposition kinetics of nitrous acid in aqueous solution, J. Phys. Chem., 92, 6294-6302, doi:10.1021/J100333A025, 1988.
  • Schwartz, S. E. and White, W. H.: Solubility equilibria of the nitrogen oxides and oxyacids in dilute aqueous solution, in: Advances in Environmental Science and Engineering, edited by Pfafflin, J. R. and Ziegler, E. N., vol. 4, pp. 1-45, Gordon and Breach Science Publishers, NY, 1981.
  • Seinfeld, J. H.: Atmospheric Chemistry and Physics of Air Pollution, Wiley-Interscience Publication, NY, 1986.


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.

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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