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 Please do not cite the old paper anymore.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 ConstantsOrganic species with other elementsSilicon (Si) → D5OH2


Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
8.9×101 Alton and Browne (2022) Q 821)
2.5 Alton and Browne (2022) Q 822)
1.3×10−4 Alton and Browne (2022) Q 823)


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.


  • Alton, M. W. & Browne, E. C.: Atmospheric degradation of cyclic volatile methyl siloxanes: Radical chemistry and oxidation products, ACS Environ. Au, 2, 263–274, doi:10.1021/ACSENVIRONAU.1C00043 (2022).


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.


821) Calculated using HENRYWIN 3.21.
822) Calculated using vapor pressures and water solubilities from HENRYWIN 3.21.
823) Calculated using vapor pressures and water solubilities from the EPA Toxicity Estimation Software Tool (TEST).

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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