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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04 Dec 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: done under GLP and OECD method

Data source

Reference
Reference Type:
other: Unnamed report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Version / remarks:
Directive 92/69/EEC
GLP compliance:
yes
Remarks:
Directives 2004/9/EC and 2004/10/EC
Type of method:
HPLC method
Partition coefficient type:
octanol-water

Test material

Constituent 1
Test material form:
liquid

Study design

Analytical method:
high-performance liquid chromatography

Results and discussion

Partition coefficientopen allclose all
Type:
Pow
Partition coefficient:
5.922
Temp.:
30 °C
Remarks on result:
other: ± 0.1
Remarks:
pH not specified
Type:
log Pow
Partition coefficient:
0.772
Temp.:
30 °C
Remarks on result:
other: pH not specified
Details on results:
Mean log10 Pow: 0.772

Any other information on results incl. tables

 Preliminary estimates

 

The preliminary test (saturation with each of the phases) leads to a value of log POw , of 18.8 with the following approximate solubility concentrations:

 

--         223 g/l in the octanol;

11.9g/l in the water (indications provided by the principal).

 

Applicant's summary and conclusion

Conclusions:
The partition coefficient has been determined to be 5.92, log 10 Pow 0.772
Executive summary:

Substances having a log10 Pow greater than 3 are regarded as having the potential to bioaccumulate in the enviroment.