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Physical & Chemical properties

Partition coefficient

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Description of key information

Estimated based on solubility ratio:

Log Pow= >5.0 at 20°C

Key value for chemical safety assessment

Additional information

Due to the fact of the differences in the sobulity of the test item in water (see endpoint 4.8) and in n-octanol the determination of the log Pow corresponding to the OECD Guideline 107 (shake flask method) is not feasible. Because the test item cannot be chromatographed under the prescribed conditions the HPLC-method (OECD Guideline 117) is also not feasible.

Due to this, the log Pow can only be estimated from the single solubilities of the test item in water and in n-octanol.

Since a generally valid water solubility of the test item cannot be determined, because the water solubility depends on the sample size applied as well as on the determination method, it is also not possible to estimate a generally valid log Pow value from the single solubilities in n-octanol and in water.

It can be assumed that the partition coefficient of test substance was estimated to be log Pow = >5.0 at 20°C.