Henry's Law Constants

Rolf Sander

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) → dinitrogen pentoxide

TRIVIAL NAME: nitric anhydride
CAS RN:10102-03-1

Hscp d ln Hs cp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
8.7×10−4 3600 Fried et al. (1994) T 36)
Sander and Crutzen (1996) E 37)
Jacob (1986) E 37)


  • Fried, A., Henry, B. E., Calvert, J. G., & Mozurkewich, M.: The reaction probability of N2O5 with sulfuric acid aerosols at stratospheric temperatures and compositions, J. Geophys. Res., 99D, 3517–3532, doi:10.1029/93JD01907 (1994).
  • Jacob, D. J.: Chemistry of OH in remote clouds and its role in the production of formic acid and peroxymonosulfate, J. Geophys. Res., 91D, 9807–9826, doi:10.1029/JD091ID09P09807 (1986).
  • Sander, R. & Crutzen, P. J.: Model study indicating halogen activation and ozone destruction in polluted air masses transported to the sea, J. Geophys. Res., 101D, 9121–9138, doi:10.1029/95JD03793 (1996).


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.


36) This value was extrapolated from data at T = 230 K and T = 273 K.
37) Fast, irreversible hydrolysis is assumed, which is equivalent to an infinite effective 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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