Henry's Law Constants

Rolf Sander

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 4.0) for water as solvent, Atmos. Chem. Phys., 15, 4399-4981 (2015), doi:10.5194/acp-15-4399-2015

Henry's Law ConstantsOrganic species with oxygen (O)Peroxides (ROOH) and peroxy radicals (ROO) → methylperoxy radical

CAS RN:2143-58-0

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
1.5×10−1 3700 Leriche et al. (2000) E 184)
Lelieveld and Crutzen (1991) E 185)
5.9×10−2 5600 Jacob (1986) E 186)


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.


  • 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).
  • Lelieveld, J. & Crutzen, P. J.: The role of clouds in tropospheric photochemistry, J. Atmos. Chem., 12, 229–267, doi:10.1007/BF00048075 (1991).
  • Leriche, M., Voisin, D., Chaumerliac, N., Monod, A., & Aumont, B.: A model for tropospheric multiphase chemistry: application to one cloudy event during the CIME experiment, Atmos. Environ., 34, 5015–5036, doi:10.1016/S1352-2310(00)00329-0 (2000).


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.


184) Leriche et al. (2000) assume Hs(ROO) = Hs(ROOH) ×Hs(HO2) / Hs(H2O2).
185) Lelieveld and Crutzen (1991) assume Hs(CH3OO) = Hs(HO2).
186) Jacob (1986) assumes Hs(CH3OO) = Hs(CH3OOH) ×Hs(HO2) / Hs(H2O2).

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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