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 Please do not cite the old paper anymore.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 oxygen (O) → Esters (RCOOR) → methyl 2-hydroxypropanoate

FORMULA:	C₄H₈O₃
TRIVIAL NAME:	methyl lactate
CAS RN:	547-64-8
STRUCTURE (FROM NIST):
InChIKey:	LPEKGGXMPWTOCB-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
9.1	5000	Sanz and Gmehling (2005)	M
4.7		Wang et al. (2017)	Q	81) 239)
1.1×10²		Wang et al. (2017)	Q	81) 240)
1.4×10¹		Wang et al. (2017)	Q	81) 241)
1.2×10³		HSDB (2015)	Q	100)

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

HSDB: Hazardous Substances Data Bank, TOXicology data NETwork (TOXNET), National Library of Medicine (US), URL https://www.nlm.nih.gov/toxnet/Accessing_HSDB_Content_from_PubChem.html (2015).
Sanz, M. T. & Gmehling, J.: Isothermal vapor-liquid equilibrium, excess enthalpy data, and activity coefficients at infinite dilution for the binary system water + methyl lactate, J. Chem. Eng. Data, 50, 85–88, doi:10.1021/JE049824C (2005).
Wang, C., Yuan, T., Wood, S. A., Goss, K.-U., Li, J., Ying, Q., & Wania, F.: Uncertain Henry’s law constants compromise equilibrium partitioning calculations of atmospheric oxidation products, Atmos. Chem. Phys., 17, 7529–7540, doi:10.5194/ACP-17-7529-2017 (2017).

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

81)	Value at T = 288 K.
100)	Calculated based on the method by Meylan and Howard (1991).
239)	Calculated using linear free energy relationships (LFERs).
240)	Calculated using SPARC Performs Automated Reasoning in Chemistry (SPARC).
241)	Calculated using COSMOtherm.

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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