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 4.0) for water as solvent, Atmos. Chem. Phys., 15, 4399-4981 (2015), doi:10.5194/acp-15-4399-2015

A new version is currently under peer review:

R. Sander: Compilation of Henry's law constants (version 5.0.0-rc.0) for water as solvent, doi:10.5194/egusphere-2023-1584

The database on this web page will be updated to version 5.0.0 when the peer review of the manuscript is completed.

Henry's Law Constants → Organic species with chlorine (Cl) → Oxygenated chlorocarbons (C, H, O, Cl) → (2-methyl-4-chlorophenoxy)acetic acid

FORMULA:	C₉H₉ClO₃
TRIVIAL NAME:	MCPA
CAS RN:	94-74-6
STRUCTURE (FROM NIST):
InChIKey:	WHKUVVPPKQRRBV-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type
[mol/(m³Pa)]	[K]
> 9.9×10¹		Mabury and Crosby (1996)	M
4.0×10⁴		Mackay et al. (2006d)	V
9.9×10³		Woodrow et al. (1990)	V

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

Mabury, S. A. & Crosby, D. G.: Pesticide reactivity toward hydroxyl and its relationship to field persistence, J. Agric. Food Chem., 44, 1920–1924, doi:10.1021/JF950423Y (1996).
Mackay, D., Shiu, W. Y., Ma, K. C., & Lee, S. C.: Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals, vol. IV of Nitrogen and Sulfur Containing Compounds and Pesticides, CRC/Taylor & Francis Group (2006d).
Woodrow, J. E., McChesney, M. M., & Seiber, J. N.: Modeling the volatilization of pesticides and their distribution in the atmosphere, in: Long Range Transport of Pesticides, edited by Kurtz, D. A., pp. 61–81, CRC Press (1990).

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 (2015) for further details.

Notes

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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