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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 Please do not cite the old paper anymore.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 ConstantsOrganic species with chlorine (Cl)Chlorofluorocarbons (C, H, O, N, F, Cl) → 2,2-dichloro-1,1,1-trifluoroethane

FORMULA:C2HF3Cl2
TRIVIAL NAME: R123
CAS RN:306-83-2
STRUCTURE
(FROM NIST):
InChIKey:OHMHBGPWCHTMQE-UHFFFAOYSA-N

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
2.3×10−4 2400 Kutsuna (2013) M
3.2×10−4 3100 Chang and Criddle (1995) M 764)
2.8×10−4 2600 McLinden (1989) V
5.0×10−4 Hilal et al. (2008) Q
1.8×10−4 Modarresi et al. (2007) Q 68)

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

  • Chang, W.-K. & Criddle, C. S.: Biotransformation of HCFC-22, HCFC-142b, HCFC-123, and HFC-134a by methanotrophic mixed culture MM1, Biodegrad., 6, 1–9, doi:10.1007/BF00702293 (1995).
  • 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).
  • Kutsuna, S.: Determination of rate constants for aqueous reactions of HCFC-123 and HCFC-225ca with OH along with Henry’s law constants of several HCFCs, Int. J. Chem. Kinet., 45, 440–451, doi:10.1002/KIN.20780 (2013).
  • McLinden, M. O.: Physical properties of alternatives to the fully halogenated chlorofluorocarbons, in: WMO Report 20, Scientific Assessment of Stratospheric Ozone: 1989, Volume II, pp. 11–38, World Meteorol. Organ., Geneva, ISBN 9280712551 (1989).
  • Modarresi, H., Modarress, H., & Dearden, J. C.: QSPR model of Henry’s law constant for a diverse set of organic chemicals based on genetic algorithm-radial basis function network approach, Chemosphere, 66, 2067–2076, doi:10.1016/J.CHEMOSPHERE.2006.09.049 (2007).

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

68) Modarresi et al. (2007) use different descriptors for their calculations. They conclude that a genetic algorithm/radial basis function network (GA/RBFN) is the best QSPR model. Only these results are shown here.
764) The data from Chang and Criddle (1995) were fitted to the three-parameter equation: Hscp= exp( −402.28495 +20229.16189/T +57.28419 ln(T)) mol m−3 Pa−1, with T in K.

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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