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Partition coefficient

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Description of key information

The partition coefficient (log Pow) of WP30 was determined to be: 10.5 at 20 °C by HPLC method (EC A8). 

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information

Retention time of the test substance is far beyond highest calibration point, resulting in a high uncertainty of the calculated log Pow. The upper 95% confidence limit of the regression line indicates that log Pow is >8.5 anyway.

A study according to OECD () is not feasible because of solubility limits in n-octanol (4.8 µg/L) and in water (< 0.02 µg/L) that imply no possibility for partition determination by concentration measurement above 240.