Henry's Law Constants

Rolf Sander

NEW: Version 5.0.0 has been published in October 2023

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Henry's Law Constants





Contact, Imprint, Acknowledgements

When referring to the compilation of Henry's Law Constants, please cite this publication:

R. Sander: Compilation of Henry's law constants (version 5.0.0) for water as solvent, Atmos. Chem. Phys., 23, 10901-12440 (2023), doi:10.5194/acp-23-10901-2023

The publication from 2023 replaces that from 2015, which is now obsolete. Please do not cite the old paper anymore.

Henry's Law ConstantsInorganic speciesNitrogen (N) → dinitrogen tetroxide

CAS RN:10544-72-6

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
1.4×10−2 Schwartz and White (1981) L
2.0×10−2 Komiyama and Inoue (1980) M 81)
1.6×10−2 3500 Komiyama and Inoue (1978) M
3.1×10−2 Andrew and Hanson (1961) M
1.3×10−2 1100 Kramers et al. (1961) M


The first column contains Henry's law solubility constant Hscp at the reference temperature of 298.15 K.
The second column contains the temperature dependence d ln Hs cp / d (1/T), also at the reference temperature.


  • Andrew, S. P. S. & Hanson, D.: The dynamics of nitrous gas absorption, Chem. Eng. Sci., 14, 105–113, doi:10.1016/0009-2509(61)85060-4 (1961).
  • Komiyama, H. & 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).
  • Komiyama, H. & Inoue, H.: Absorption of nitrogen oxides into water, Chem. Eng. Sci., 35, 154–161, doi:10.1016/0009-2509(80)80082-0 (1980).
  • Kramers, H., Blind, M. P. P., & Snoeck, E.: Absorption of nitrogen tetroxide by water jets, Chem. Eng. Sci., 14, 115–123, doi:10.1016/0009-2509(61)85062-8 (1961).
  • Schwartz, S. E. & 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. & Ziegler, E. N., vol. 4, pp. 1–45, Gordon and Breach Science Publishers, NY (1981).


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 (2023) for further details.


81) Value at T = 288 K.

The numbers of the notes are the same as in Sander (2023). References cited in the notes can be found here.

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