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 Please do not cite the old paper anymore.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 speciesOther elements (B, Se, P, As, Hg) → selenium hydride

CAS RN:7783-07-5

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
8.1×10−4 1700 Fogg and Young (1988) L 1)
8.3×10−4 1900 Wilhelm et al. (1977) L
8.3×10−4 1900 Sisi et al. (1971) M 213)


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.


  • Fogg, P. G. T. & Young, C. L.: IUPAC Solubility Data Series, Volume 32, Hydrogen Sulfide, Deuterium Sulfide and Hydrogen Selenide, Pergamon Press, Oxford, doi:10.1016/C2009-0-00348-1 (1988).
  • Sisi, J. C., Dubeau, C., & Ozanne, N.: Solubility of hydrogen selenide gas in water, J. Chem. Eng. Data, 16, 78–79, doi:10.1021/JE60048A023 (1971).
  • Wilhelm, E., Battino, R., & 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 (2023) for further details.


1) A detailed temperature dependence with more than one parameter is available in the original publication. Here, only the temperature dependence at 298.15 K according to the van 't Hoff equation is presented.
213) The data from Sisi et al. (1971) were fitted to the three-parameter equation: Hscp= exp( −81.82525 +4954.57763/T +10.19950 ln(T)) mol m−3 Pa−1, with T in K.

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

* * *

Search Henry's Law Database

Species Search:

Identifier Search:

Reference Search:

* * *

Convert Henry's Law Constants


* * *