Henry's Law Constants

Rolf Sander

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Henry's Law Constants





Contact, Impressum, 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 ConstantsInorganic speciesBromine (Br) → bromine (molecular)

CAS RN:7726-95-6

Hscp d ln Hs cp / d (1/T) Reference Type Notes
[mol/(m3Pa)] [K]
7.2×10−3 4400 Sander et al. (2011) L
7.2×10−3 4400 Sander et al. (2006) L
1.8×10−2 3600 Dubik et al. (1987) M 59)
6.8×10−3 Hill et al. (1968) M
9.6×10−3 Jenkins and King (1965) M 9)
7.0×10−3 4100 Kelley and Tartar (1956) M
7.8×10−3 3800 Winkler (1906) M
7.9×10−3 3600 Winkler (1899) M
8.3×10−3 4100 Fogg and Sangster (2003) V
7.9×10−3 3900 Jenkins and King (1965) R
7.2×10−3 4000 Wagman et al. (1982) T
7.6×10−3 Bartlett and Margerum (1999) ? 7) 47)
7.5×10−3 4100 Dean (1992) ? 6)


  • Bartlett, W. P. & Margerum, D. W.: Temperature dependencies of the Henry’s law constant and the aqueous phase dissociation constant of bromine chloride, Environ. Sci. Technol., 33, 3410–3414, doi:10.1021/ES990300K (1999).
  • Dean, J. A.: Lange’s Handbook of Chemistry, McGraw-Hill, Inc. (1992).
  • Dubik, N. A., Titova, G. M., & Loshakova, E. I.: Partition coefficients of bromine and bromine chloride between air and natural brines, Issled. v Obl. Poluch. Magniya, Ioda, Broma i ikh Soed., M., pp. 53–57, (in Russian, see also Chem. Abstr., 109, 213154j) (1987).
  • Fogg, P. & Sangster, J.: Chemicals in the Atmosphere: Solubility, Sources and Reactivity, John Wiley & Sons, Inc. (2003).
  • Hill, J. O., Worsley, I. G., & Hepler, L. G.: Calorimetric determination of the distribution coefficient and thermodynamic properties of bromine in water and carbon tetrachloride, J. Phys. Chem., 72, 3695–3697, doi:10.1021/J100856A066 (1968).
  • Jenkins, J. & King, M. B.: Vapor-liquid equilibria for the system bromine/water at low bromine concentrations, Chem. Eng. Sci., 20, 921–922, doi:10.1016/0009-2509(65)80089-6 (1965).
  • Kelley, C. M. & Tartar, H. V.: On the system: bromine-water, J. Am. Chem. Soc., 78, 5752–5756, doi:10.1021/JA01603A010 (1956).
  • Sander, S. P., Friedl, R. R., Golden, D. M., Kurylo, M. J., Moortgat, G. K., Keller-Rudek, H., Wine, P. H., Ravishankara, A. R., Kolb, C. E., Molina, M. J., Finlayson-Pitts, B. J., Huie, R. E., & Orkin, V. L.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation Number 15, JPL Publication 06-2, Jet Propulsion Laboratory, Pasadena, CA, URL (2006).
  • Sander, S. P., Abbatt, J., Barker, J. R., Burkholder, J. B., Friedl, R. R., Golden, D. M., Huie, R. E., Kolb, C. E., Kurylo, M. J., Moortgat, G. K., Orkin, V. L., & Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 17, JPL Publication 10-6, Jet Propulsion Laboratory, Pasadena, URL (2011).
  • 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 (1982).
  • Winkler, L. W.: Löslichkeit des Broms in Wasser, Chem. Ztg., 23, 687–689 (1899).
  • Winkler, L. W.: Gesetzmässigkeit bei der Absorption der Gase in Flüssigkeiten, Z. Phys. Chem., 55, 344–354, doi:10.1515/ZPCH-1906-5518 (1906).


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.


6) Only the tabulated data between T = 273 K and T = 303 K from Dean (1992) were used to derive Hs and its temperature dependence. Above T = 303 K, the tabulated data could not be parameterized very well. The partial pressure of water vapor (needed to convert some Henry's law constants) was calculated using the formula given by Sander et al. (1995). The quantities A and α from Dean (1992) were assumed to be identical.
7) Several references are given in the list of Henry's law constants but not assigned to specific species.
9) Value at T = 293 K.
47) The value of ∆H° listed in Table 2 of Bartlett and Margerum (1999) is incorrect.
59) Dubik et al. (1987) measured the solubility in concentrated salt solutions (natural brines).

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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