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Environmental fate & pathways

Henry's Law constant

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Administrative data

Endpoint:
Henry's law constant
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well documented study

Data source

Reference
Reference Type:
publication
Title:
Atmospheric loss processes of dimethyl and diethyl carbonate.
Author:
Katrib Y, Deiber G, Mirabel P, Le Calvé S, George C, Mellouki A, Le Bras G
Year:
2002
Bibliographic source:
J Atmos Chem 43: 151-174 (2002)

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The uptake coefficients of carbonates on aqueous surfaces were measured as a function of temperature and composition of the liquid phase using the droplet train technique coupled to a mass spectrometric detection. From the kinetic data, Henry's Law constant was derived between 265 and 279K.
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): diethyl carbonate
- Substance type:ester
- Physical state: liquid
- Analytical purity: 99% (obtained from Aldrich)
- Impurities (identity and concentrations): not reported

Results and discussion

Henry's Law constant H
H:
30 - 98 other: M/atm
Atm. press.:
1 013 hPa
Remarks on result:
other: temperature range: 279-270 K

Applicant's summary and conclusion

Conclusions:
Henry's Law constants of 30 -98 M/atm were derived between 279 and 270 K.
Executive summary:

Henry's law constant was obtained from measured uptake kinetics determined via the droplet train technique coupled to a mass spectrometric detection. Henry's Law constants of 30 -98 M/atm were derived between 279 and 260 K.