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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
accepted calculation method
Remarks:
KowWin is an accepted calculation method, however the applicability to inorganic carbonyl halides is questionable

Data source

Reference
Reference Type:
other: QSAR
Title:
KOWWIN
Author:
EPA's Office of Pollution Prevention Toxics and Syracuse Research Coporation
Year:
2012
Bibliographic source:
U.S. Environmental Protection Agency

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: REACH guidance on QSARs R.6
Version / remarks:
May/July 2008
Deviations:
no
GLP compliance:
no
Type of method:
calculation method (fragments)
Remarks:
A QSAR is a mathematical model relating one or more quantitative parameters derived from chemical structure to a quantitative measure of a property or activity.
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Carbonyl difluoride
EC Number:
206-534-2
EC Name:
Carbonyl difluoride
Cas Number:
353-50-4
Molecular formula:
CF2O
IUPAC Name:
carbonyl difluoride
Test material form:
gas

Study design

Analytical method:
not specified

Results and discussion

Partition coefficient
Type:
log Pow
Partition coefficient:
-1.34
Temp.:
25 °C
Details on results:
The molecular weight of the test item is included in the molecular weight range of the training set compounds (18.02 g/mol to 719.92 g/mol). Furthermore, the fragments obtained from the chemical structure of the test item are presented in the training and the validation set.

Any other information on results incl. tables

The KOWWIN program indicate that "Acetyl halides hydrolyze". Therefore, the value of log Kow obtained should be taken with a particular care. Indeed, the test item is known to instantly to be hydrolysed in contact with water or moisture.

Applicant's summary and conclusion

Conclusions:
The log Kow of the test item calculated with KOWWIN program is -1.34 at 25°C
Executive summary:

The log Kow of the test item calculated with KOWWIN program is -1.34 at 25°C