MPG

Henry's Law Constants

www.henrys-law.org

Rolf Sander

NEW: Version 5.0.0 has been published in October 2023

Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Home

Henry's Law Constants

Notes

References

Download

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 Please do not cite the old paper anymore.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 ConstantsOrganic species with nitrogen (N)Heterocycles with nitrogen (C, H, N) → 2,6-bis-(1,1-dimethylethyl)-pyridine

FORMULA:C13H21N
TRIVIAL NAME: 2,6-di-tert-butylpyridine
CAS RN:585-48-8
STRUCTURE
(FROM NIST):
InChIKey:UWKQJZCTQGMHKD-UHFFFAOYSA-N

Hscp d ln Hs cp / d (1/T) References Type Notes
[mol/(m3Pa)] [K]
8.0×10−4 6900 Arnett and Chawla (1979) M 561)
2.8×10−1 Arnett and Chawla (1979) V 565)

Data

The first column contains Henry's law solubility constant Hscp at the reference temperature of 298.15 K.
The second column contains the temperature dependence d ln Hs cp / d (1/T), also at the reference temperature.

References

  • Arnett, E. M. & Chawla, B.: Complete thermodynamic analysis of the hydration of thirteen pyridines and pyridinium ions. The special case of 2,6-di-tert-butylpyridine, J. Am. Chem. Soc., 101, 7141–7146, doi:10.1021/JA00518A001 (1979).

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

561) Calculated using ∆Gsg→ H2O and ∆Hsg→ H2O from Table IV of Arnett and Chawla (1979). Since some of the values in this table are taken directly from Andon et al. (1954), it is assumed that the thermodynamic properties are defined in the same way. Since ∆Hsg→ H2O is defined relative to pyridine, a value of −11.93 kcal mol−1 from Arnett et al. (1977) was added.
565) Value calculated from the solubility of 9.4×10−3 mol L−1 and the vapor pressure of 0.255 mmHg, as shown on pages 7142-7143 of Arnett and Chawla (1979). It is inconsistent with the entry in Table IV of that paper.

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

Species Search:

Identifier Search:

Reference Search:

* * *

Convert Henry's Law Constants

Convert:

* * *