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 → Hydrocarbons (C, H) → Alkanes → 2,2-dimethylhexane

FORMULA:	C₈H₁₈
CAS RN:	590-73-8
STRUCTURE (FROM NIST):
InChIKey:	FLTJDUOFAQWHDF-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
2.6×10⁻⁶	5100	Dohányosová et al. (2004)	M
1.9×10⁻⁶		Hilal et al. (2008)	Q
	4700	Kühne et al. (2005)	Q
	5100	Kühne et al. (2005)	?
2.9×10⁻⁶		Yaws and Yang (1992)	?	92)

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

Dohányosová, P., Sarraute, S., Dohnal, V., Majer, V., & Costa Gomes, M.: Aqueous solubility and related thermodynamic functions of nonaromatic hydrocarbons as a function of molecular structure, Ind. Eng. Chem. Res., 43, 2805–2815, doi:10.1021/IE030800T (2004).
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).
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).
Yaws, C. L. & Yang, H.-C.: Henry’s law constant for compound in water, in: Thermodynamic and Physical Property Data, edited by Yaws, C. L., pp. 181–206, Gulf Publishing Company, Houston, TX (1992).

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

92)	Yaws and Yang (1992) give several references for the Henry's law constants but don't assign them to specific species.

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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