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Henry's Law Constants

www.henrys-law.org

Rolf Sander

NEW: Version 5.0.0 has been published in October 2023

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany

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Henry's Law Constants

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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 Please do not cite the old paper anymore.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 Constants → Inorganic species → Iodine (I) → iodine (molecular)

FORMULA:I2
CAS RN:7553-56-2
STRUCTURE
(FROM NIST):
InChIKey:PNDPGZBMCMUPRI-UHFFFAOYSA-N

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
2.8×10−2 4300 Eguchi et al. (1973) M
2.8×10−2 3900 Fogg and Sangster (2003) V
3.0×10−2 4400 Palmer et al. (1985) R 1)
3.1×10−2 4600 Berdnikov and Bazhin (1970) R
3.2×10−2 4800 Wagman et al. (1982) T
1.1×10−2 Thompson and Zafiriou (1983) C 157)

Data

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.

References

  • Berdnikov, V. M. & Bazhin, N. M.: Oxidation-reduction potentials of certain inorganic radicals in aqueous solutions, Russ. J. Phys. Chem., 44, 395–398 (1970).
  • Eguchi, W., Adachi, M., & Yoneda, M.: Dependency of partition equilibrium of iodine between air and aqueous solution containing sodium hydroxide upon temperature and concentration, J. Chem. Eng. Jpn., 6, 389–396, doi:10.1252/JCEJ.6.389 (1973).
  • Fogg, P. & Sangster, J.: Chemicals in the Atmosphere: Solubility, Sources and Reactivity, John Wiley & Sons, Inc., ISBN 978-0-471-98651-5 (2003).
  • Palmer, D. A., Ramette, R. W., & Mesmer, R. E.: The hydrolysis of iodine: Equilibria at high temperatures, J. Nucl. Mater., 130, 280–286, doi:10.1016/0022-3115(85)90317-4 (1985).
  • Thompson, A. M. & Zafiriou, O. C.: Air-sea fluxes of transient atmospheric species, J. Geophys. Res., 88, 6696–6708, doi:10.1029/JC088IC11P06696 (1983).
  • Wagman, D. D., Evans, W. H., Parker, V. B., Schumm, R. H., Halow, I., Bailey, S. M., Churney, K. L., & Nuttall, R. L.: The NBS tables of chemical thermodynamic properties; Selected values for inorganic and C1 and C2 organic substances in SI units, J. Phys. Chem. Ref. Data, 11, suppl. 2, URL https://srd.nist.gov/JPCRD/jpcrdS2Vol11.pdf (1982).

Type

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.

Notes

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.
157) Thompson and Zafiriou (1983) quote a paper as the source that gives only the solubility but not the Henry's law constant.

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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