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Physical & Chemical properties

Partition coefficient

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Reference
Endpoint:
partition coefficient
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to
Guideline:
OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
GLP compliance:
no
Type of method:
shake-flask method to: flask method
Partition coefficient type:
octanol-water
Analytical method:
photometric method
Type:
Pow
Partition coefficient:
645
Temp.:
25 °C
pH:
5.8
Type:
log Pow
Partition coefficient:
2.81
Temp.:
25 °C
pH:
5.8
Details on results:
concentraion after the equilibration:
organic phase: 9.92 x 10-3 mol
aqueous phase: 1.54 x 10-5 mol

mean value of 3 measurements

Conclusions:
The partition coefficient of test substance was determined to be 2.81 at 25°C at pH 5.8
Executive summary:

In this guideline (OECD 107) study, the n-octanol/water partition coefficient of the test material (EC 213-426-9) was determined to be Log Pow 2.81 at 25 ºC and pH 5.8.

Description of key information

 Study carried out according to guideline.

Key value for chemical safety assessment

Log Kow (Log Pow):
2.81
at the temperature of:
25 °C

Additional information

The measurement was carried out using shake-flask method