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 Please do not cite the old paper anymore.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 fluorine (F) → Organic fluorine → perfluoroheptanoic acid

FORMULA:	C₇HF₁₃O₂
CAS RN:	375-85-9
STRUCTURE (FROM NIST):
InChIKey:	ZWBAMYVPMDSJGQ-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
1.7		Kwan (2001)	M	633)
5.8×10⁻⁴		Abusallout et al. (2022)	Q	634)
5.7×10⁻⁴		Zhang et al. (2010)	Q	288) 289)
5.0×10⁻²		Zhang et al. (2010)	Q	288) 290)
2.2×10⁻²		Zhang et al. (2010)	Q	288) 291)
5.6×10⁻³		Zhang et al. (2010)	Q	288) 292)
1.8×10⁻¹		Arp et al. (2006)	Q	635)
5.7×10⁻²		Arp et al. (2006)	Q	636)

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

Abusallout, I., Holton, C., Wang, J., & Hanigan, D.: Henry’s Law constants of 15 per- and polyfluoroalkyl substances determined by static headspace analysis, J. Hazard. Mater. Lett., 3, 100 070, doi:10.1016/J.HAZL.2022.100070 (2022).
Arp, H. P. H., Niederer, C., & Goss, K. U.: Predicting the partitioning behavior of various highly fluorinated compounds, Environ. Sci. Technol., 40, 7298–7304, doi:10.1021/ES060744Y (2006).
Kwan, W. C.: Physical property determination of perfluorinated surfactants, Master’s thesis, University of Toronto, URL https://hdl.handle.net/1807/16278 (2001).
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

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.
633)	Measured in aqueous hydrochloric acid and extrapolated to pure water as the solvent at 25 ^°C. Measurements were also made at other temperatures; however, those were not extrapolated to pure water as the solvent.
634)	Calculated using the EPI Suite Bond estimation method.
635)	Calculated using the new SPARC method; see Arp et al. (2006) for details.
636)	Calculated using the COSMOtherm method; see Arp et al. (2006) for details.

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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