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) → hydrazoic acid

CAS RN:7782-79-8

Hcp d ln Hcp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
1.2×10−1 3800 Sander et al. 2011 L 22)
9.8×10−2 3100 Wilhelm et al. 1977 L
1.2×10−1 3700 Betterton and Robinson 1997 M
9.9×10−2 Templeton and King 1971 M 23)


  • Betterton, E. A. and Robinson, J. L.: Henry's law coefficient of hydrazoic acid, J. Air Waste Manage. Assoc., 47, 1216-1219, doi:10.1080/10473289.1997.10464060, 1997.
  • 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.
  • Templeton, J. C. and King, E. L.: Kinetic and equilibrium studies on azidochromium(III) ion in concentrated perchloric acid, J. Am. Chem. Soc., 93, 7160-7166, doi:10.1021/JA00755A009, 1971.
  • Wilhelm, E., Battino, R., and Wilcock, R. J.: Low-pressure solubility of gases in liquid water, Chem. Rev., 77, 219-262, doi:10.1021/CR60306A003, 1977.


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.


22) There is a typo in Sander et al. (2011): The value for A should be −10.19, not 10.19.
23) Value at T = 303 K.

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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