Henry's Law Constants

Rolf Sander

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany

Errata

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 Please do not cite the old paper anymore.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 Constants → Organic 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

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	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

H_{s}^{cp}

at the reference temperature of 298.15 K.
The second column contains the temperature dependence

d ln H_{s}^{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: H_s^cp= 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.

* * *

Search Henry's Law Database

* * *

Convert Henry's Law Constants

	Convert:

Henry's Law Constants

www.henrys-law.org

Rolf Sander

Home