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 Please do not cite the old paper anymore.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) → Amines, amides, amino acids (C, H, O, N) → ethanolamine

FORMULA:	HOC₂H₄NH₂
CAS RN:	141-43-5
STRUCTURE (FROM NIST):
InChIKey:	HZAXFHJVJLSVMW-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
4.2×10³	8300	Kim et al. (2008)	M	552)
6.0×10⁴		Bone et al. (1983)	M	12)
1.1×10⁴		Modarresi et al. (2007)	Q	68)
9.7×10²	5800	Nguyen (2013)	?	11) 567)

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

Bone, R., Cullis, P., & Wolfenden, R.: Solvent effects on equilibria of addition of nucleophiles to acetaldehyde and the hydrophilic character of diols, J. Am. Chem. Soc., 105, 1339–1343, doi:10.1021/JA00343A044 (1983).
Kim, I., Svendsen, H. F., & Børresen, E.: Ebulliometric determination of vapor-liquid equilibria for pure water, monoethanolamine, N-methyldiethanolamine, 3-(methylamino)-propylamine, and their binary and ternary solutions, J. Chem. Eng. Data, 53, 2521–2531, doi:10.1021/JE800290K (2008).
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).
Nguyen, T.: Amine Volatility in CO₂ Capture, Ph.D. thesis, The University of Texas at Austin, USA, URL https://rochelle.che.utexas.edu/files/2015/02/Nguyen-2013-Amine-Volatility-in-CO2-Capture.pdf (2013).

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

11)	Measured at high temperature and extrapolated to T^⊖ = 298.15 K.
12)	Value at T = 293 K.
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.
552)	Calculated from the slope of y₁P vs x₁, using the tabulated VLE data from Kim et al. (2008) between 40 ^°C and 100 ^°C. Only dilute solutions with x₁ ≤ 0.1 were considered.
567)	Nguyen (2013) refer to Kim et al. (2008) as the source, but this value cannot be found there.

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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