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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: n-octanol/water
Analytical method:
high-performance liquid chromatography
Type:
log Pow
Partition coefficient:
1.43
Temp.:
22 °C
pH:
7
Neutral pH  Neutral pH 
   Pow log Pow 
 Major component peak 1 1.6 x 10  1.2 
 Major component peak 2 2.1 x 10 1.3 

The log Pow of MPKO was determined by means of HPLC at neutral pH. The following values were determined: Major component peak 1 has a log Pow of 1.2 (Pow = 1.6 x 10). Major component peak 2 has a log Pow of 1.3 (Pow = 2.1 x 10)

Description of key information

1.43 at 22 °C (HPLC method, OECD 117)

Key value for chemical safety assessment

Log Kow (Log Pow):
1.43
at the temperature of:
22 °C

Additional information