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 Please do not cite the old paper anymore.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) → Chlorocarbons (C, H, Cl) → 2,4-dichloro-1-methylbenzene

FORMULA:	C₇H₆Cl₂
TRIVIAL NAME:	2,4-dichlorotoluene
CAS RN:	95-73-8
STRUCTURE (FROM NIST):
InChIKey:	FUNUTBJJKQIVSY-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
2.7×10⁻³	5000	Schwardt et al. (2021)	L	1)
2.7×10⁻³	5000	Brockbank (2013)	L
2.7×10⁻³	4900	Brockbank et al. (2013)	M
2.3×10⁻³		HSDB (2015)	Q	100)
3.1×10⁻³		Zhang et al. (2010)	Q	288) 289)
5.4×10⁻³		Zhang et al. (2010)	Q	288) 290)
6.7×10⁻³		Zhang et al. (2010)	Q	288) 291)
1.8×10⁻³		Zhang et al. (2010)	Q	288) 292)
	4400	Kühne et al. (2005)	Q
	5500	Kühne et al. (2005)	?

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

Brockbank, S. A.: Aqueous Henry’s law constants, infinite dilution activity coefficients, and water solubility: critically evaluated database, experimental analysis, and prediction methods, Ph.D. thesis, Brigham Young University, USA, URL https://scholarsarchive.byu.edu/etd/3691/ (2013).
Brockbank, S. A., Russon, J. L., Giles, N. F., Rowley, R. L., & Wilding, W. V.: Infinite dilution activity coefficients and Henry’s law constants of compounds in water using the inert gas stripping method, Fluid Phase Equilib., 348, 45–51, doi:10.1016/J.FLUID.2013.03.023 (2013).
HSDB: Hazardous Substances Data Bank, TOXicology data NETwork (TOXNET), National Library of Medicine (US), URL https://www.nlm.nih.gov/toxnet/Accessing_HSDB_Content_from_PubChem.html (2015).
Kühne, R., Ebert, R.-U., & Schüürmann, G.: Prediction of the temperature dependency of Henry’s law constant from chemical structure, Environ. Sci. Technol., 39, 6705–6711, doi:10.1021/ES050527H (2005).
Schwardt, A., Dahmke, A., & Köber, R.: Henry’s law constants of volatile organic compounds between 0 and 95∘C – Data compilation and complementation in context of urban temperature increases of the subsurface, Chemosphere, 272, 129 858, doi:10.1016/J.CHEMOSPHERE.2021.129858 (2021).
Zhang, X., Brown, T. N., Wania, F., Heimstad, E. S., & Goss, K.-U.: Assessment of chemical screening outcomes based on different partitioning property estimation methods, Environ. Int., 36, 514–520, doi:10.1016/J.ENVINT.2010.03.010 (2010).

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

1)	A detailed temperature dependence with more than one parameter is available in the original publication. Here, only the temperature dependence at 298.15 K according to the van 't Hoff equation is presented.
100)	Calculated based on the method by Meylan and Howard (1991).
288)	Data taken from the supplement.
289)	Calculated using the EPI Suite (v4.0) method.
290)	Calculated using the SPARC (v4.2) method.
291)	Calculated using the COSMOtherm (v2.1) method.
292)	Calculated using the ABSOLV (ADMEBoxes v4.1) method.

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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