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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Physical & Chemical properties

Partition coefficient

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Link to relevant study record(s)

Description of key information

The n-octanol/water partition coefficient cannot be determined experimentally due to technical problems. The use of a QSAR programme resulted in a calculated partition coefficient of log Pow = -1.57.

Key value for chemical safety assessment

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

Additional information

Tests on the octanol/water partition coefficient of hydrogen peroxide can not be performed due to technical problems: The shake flask method is not applicable (risk of violent reactions). The HPLC-method is not applicable for substances which react with the solvent and for substances with a log Pow below 0. The solubility in octanol can not be determined since hydrogen peroxide should not be mixed with organic solvents. The n-octanol/water partition coefficient can be calculated using a QSAR programme. The calculation of the partition coefficient for hydrogen peroxide revealed a value log Pow = -1.57 (Brachold 2006).