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Partition coefficient

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Description of key information

Two studies conducted to EEC method A8 have yielded slightly different estimated values for log10 Pow.

Key value for chemical safety assessment

Log Kow (Log Pow):
0.16
at the temperature of:
20 °C

Additional information

An experimentally determined value from an EEC A8 method that gave good correlation between determined and published values for a reference substance is selected as the Key study value, i.e. log Pow = 0.16. The supporting study used an HPLC capacity method comparing test substance with a range of reference substances and derived an estimate by linear regression. This gave a relatively high value of log Pow1.2 (10-fold higher Pow).

The supporting study report records a KOWWIN estimate using an earlier version (v1.35a). This value of 0.15 is very close to the Key Study experimental value.