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) → Ethers (ROR) → ethyl tert-butyl ether

FORMULA:	C₂H₅OC(CH₃)₃
TRIVIAL NAME:	ETBE
CAS RN:	637-92-3
STRUCTURE (FROM NIST):
InChIKey:	NUMQCACRALPSHD-UHFFFAOYSA-N

$H_{s}^{cp}$	$d ln H_{s}^{cp} / d (1/ T)$	References	Type	Notes
[mol/(m³Pa)]	[K]
6.3×10⁻³	6600	Sieg et al. (2009)	M	121)
4.4×10⁻³	4300	Falabella and Teja (2008)	M	89) 130)
6.1×10⁻³	6500	Arp and Schmidt (2004)	M
4.2×10⁻³		Miller and Stuart (2000)	M	126)
3.7×10⁻³	7600	Pankow et al. (1996)	?

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

Arp, H. P. H. & Schmidt, T. C.: Air-water transfer of MTBE, its degradation products, and alternative fuel oxygenates: the role of temperature, Environ. Sci. Technol., 38, 5405–5412, doi:10.1021/ES049286O (2004).
Falabella, J. B. & Teja, A. S.: Air-water partitioning of gasoline components in the presence of sodium chloride, Energy Fuels, 22, 398–401, doi:10.1021/EF700513K (2008).
Miller, M. E. & Stuart, J. D.: Measurement of aqueous Henry’s law constants for oxygenates and aromatics found in gasolines by the static headspace method, Anal. Chem., 72, 622–625, doi:10.1021/AC990757C (2000).
Pankow, J. F., Rathbun, R. E., & Zogorski, J. S.: Calculated volatilization rates of fuel oxygenate compounds and other gasoline-related compounds from rivers and streams, Chemosphere, 33, 921–937, doi:10.1016/0045-6535(96)00227-5 (1996).
Sieg, K., Starokozheva, E., Schmidt, M. U., & Püttmann, W.: Inverse temperature dependence of Henry’s law coefficients for volatile organic compounds in supercooled water, Chemosphere, 77, 8–14, doi:10.1016/J.CHEMOSPHERE.2009.06.028 (2009).

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

89)	Measured at high temperature and extrapolated to T^⊖ = 298.15 K.
121)	Sieg et al. (2009) also provide data for supercooled water. Here, only data above 0 ^°C were used to calculate the temperature dependence.
126)	Value at T = 296 K.
130)	Values for salt solutions are also available from this reference.

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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