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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 Please do not cite the old paper anymore.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 → Chlorine (Cl) → hypochlorous acid

FORMULA:HOCl
CAS RN:7790-92-3
STRUCTURE
(FROM NIST):
InChIKey:QWPPOHNGKGFGJK-UHFFFAOYSA-N

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
6.5 5900 Burkholder et al. (2019) L
6.5 5900 Burkholder et al. (2015) L
6.5 5900 Sander et al. (2011) L
6.5 5900 Sander et al. (2006) L
6.5 5900 Huthwelker et al. (1995) L
9.1 Blatchley et al. (1992) M 12)
4.7 1600 Hanson and Ravishankara (1991) M 127)
9.0 McCoy et al. (1990) M 12)
6.0 4900 Holzwarth et al. (1984) M 128)
1.2×101 5200 Imagawa (1950) M 11)
6.4 8900 Ourisson and Kastner (1939) M
2.6 5100 Wagman et al. (1982) T
5.4 Hilal et al. (2008) Q

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

  • Blatchley, III, E. R., Johnson, R. W., Alleman, J. E., & McCoy, W. F.: Effective Henry’s law constants for free chlorine and free bromine, Wat. Res., 26, 99–106, doi:10.1016/0043-1354(92)90117-M (1992).
  • Burkholder, J. B., Sander, S. P., Abbatt, J., Barker, J. R., Huie, R. E., Kolb, C. E., Kurylo, M. J., Orkin, V. L., Wilmouth, D. M., & Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 18, JPL Publication 15-10, Jet Propulsion Laboratory, Pasadena, URL https://jpldataeval.jpl.nasa.gov (2015).
  • Burkholder, J. B., Sander, S. P., Abbatt, J., Barker, J. R., Cappa, C., Crounse, J. D., Dibble, T. S., Huie, R. E., Kolb, C. E., Kurylo, M. J., Orkin, V. L., Percival, C. J., Wilmouth, D. M., & Wine, P. H.: Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies, Evaluation No. 19, JPL Publication 19-5, Jet Propulsion Laboratory, Pasadena, URL https://jpldataeval.jpl.nasa.gov (2019).
  • Hanson, D. R. & Ravishankara, A. R.: The reaction probabilities of ClONO2 and N2O5 on 40 to 75% sulfuric acid solutions, J. Geophys. Res., 96, 17 307–17 314, doi:10.1029/91JD01750 (1991).
  • Hilal, S. H., Ayyampalayam, S. N., & Carreira, L. A.: Air-liquid partition coefficient for a diverse set of organic compounds: Henry’s law constant in water and hexadecane, Environ. Sci. Technol., 42, 9231–9236, doi:10.1021/ES8005783 (2008).
  • Holzwarth, G., Balmer, R. G., & Soni, L.: The fate of chlorine and chloramines in cooling towers, Wat. Res., 18, 1421–1427, doi:10.1016/0043-1354(84)90012-5 (1984).
  • Huthwelker, T., Clegg, S. L., Peter, T., Carslaw, K., Luo, B. P., & Brimblecombe, P.: Solubility of HOCl in water and aqueous H2SO4 to stratospheric temperatures, J. Atmos. Chem., 21, 81–95, doi:10.1007/BF00712439 (1995).
  • Imagawa, H.: Chemical reactions in the chlorate manufacturing electrolytic cell (part 1) The vapour pressure of hypochlorous acid on its aquous solution, J. Electrochem. Soc. Jpn., 18, 382–385, doi:10.5796/DENKA.18.382 (1950).
  • McCoy, W. F., Blatchley, III, E. R., & Johnson, R. W.: Hypohalous acid and haloamine flashoff in industrial evaporative cooling systems, Tech. rep., Cooling Tower Institute, paper no.: TP90-09 (1990).
  • Ourisson, J. & Kastner, M.: Determination des tensions de vapeurs des solutions d’acide hypochloreux à 10∘ et 20∘ C, Bull. Soc. Chim. Memoirs, 6, 1307–1311 (1939).
  • 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 https://jpldataeval.jpl.nasa.gov (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 https://jpldataeval.jpl.nasa.gov (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, 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

11) Measured at high temperature and extrapolated to T⊖ = 298.15 K.
12) Value at T = 293 K.
127) This value was extrapolated from data at T = 215 K and T = 263 K.
128) Value at pH = 6.5.

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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