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 Please do not cite the old paper anymore.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 nitrogen (N) → Heterocycles with oxygen and nitrogen (C, H, O, N) → 2-isobutyl-3-methoxypyrazine

FORMULA:	C₄N₂H₃(C₄H₉)OCH₃
CAS RN:	24683-00-9
STRUCTURE (FROM NIST):
InChIKey:	UXFSPRAGHGMRSQ-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
1.7×10⁻¹		Karl et al. (2003)	M
2.0×10⁻¹		Buttery et al. (1971)	M
1.3		Modarresi et al. (2007)	Q	68)

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

Buttery, R. G., Bomben, J. L., Guadagni, D. G., & Ling, L. C.: Some considerations of volatilities of organic flavor compounds in foods, J. Agric. Food Chem., 19, 1045–1048, doi:10.1021/JF60178A004 (1971).
Karl, T., Yeretzian, C., Jordan, A., & Lindinger, W.: Dynamic measurements of partition coefficients using proton-transfer-reaction mass spectrometry (PTR-MS), Int. J. Mass Spectrom., 223-224, 383–395, doi:10.1016/S1387-3806(02)00927-2 (2003).
Modarresi, H., Modarress, H., & Dearden, J. C.: QSPR model of Henry’s law constant for a diverse set of organic chemicals based on genetic algorithm-radial basis function network approach, Chemosphere, 66, 2067–2076, doi:10.1016/J.CHEMOSPHERE.2006.09.049 (2007).

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

68)	Modarresi et al. (2007) use different descriptors for their calculations. They conclude that a genetic algorithm/radial basis function network (GA/RBFN) is the best QSPR model. Only these results are shown here.

The numbers of the notes are the same as in Sander (2023). References cited in the notes can be found here.

* * *

Search Henry's Law Database

* * *

Convert Henry's Law Constants

	Convert:

Henry's Law Constants

www.henrys-law.org

Rolf Sander

Home