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 oxygen (O) → Aldehydes (RCHO) → 2-methylbutanal

FORMULA:	C₅H₁₀O
CAS RN:	96-17-3
STRUCTURE (FROM NIST):
InChIKey:	BYGQBDHUGHBGMD-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
2.3×10⁻²		Pollien et al. (2003)	M
9.5×10⁻³		Hertel et al. (2007)	Q	194)

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

Hertel, M. O., Scheuren, H., Sommer, K., & Glas, K.: Limiting separation factors and limiting activity coefficients for hexanal, 2-methylbutanal, 3-methylbutanal, and dimethylsulfide in water at (98.1 to 99.0) ∘C, J. Chem. Eng. Data, 52, 148–150, doi:10.1021/JE060324O (2007).
Pollien, P., Jordan, A., Lindinger, W., & Yeretzian, C.: Liquid-air partitioning of volatile compounds in coffee: dynamic measurements using proton-transfer-reaction mass spectrometry, Int. J. Mass Spectrom., 228, 69–80, doi:10.1016/S1387-3806(03)00197-0 (2003).

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

194)	Value at T = 372 K.

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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