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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

The rounded resulting estimated partition coefficient was calculated to be  P<0.008; logP < -2.1.The solubilities of the test item (KBOB) in n-octanol and water were determined by visual approach due to instability of test item in water. An estimated log Pow was provided. 

Key value for chemical safety assessment

Log Kow (Log Pow):
-2.1
at the temperature of:
20 °C

Additional information

The water solubility was determined to be much higher than the n-octanol solubility of KBOB. The method used can be regarded as suitable for the given problem and due to the fact that the water solubility was determined to be much higher than the n-octanol solubility it can be reliably estimated that KBOB has a low log Pow.