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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient of HHCB has been determined as log P = 5.3 at 25°C using the slow stirring method in this published study.

Key value for chemical safety assessment

Log Kow (Log Pow):
5.3
at the temperature of:
25 °C

Additional information

The log Kow of HHCB was found to be 5.3 at 25 °C and a pH of circa 7 in a non-GLP study according to Brooke et al., 1986 using a slow-stirring method. A value of 5.9 at 25 °C was reported in a GLP study according to OECD guideline 117 using the HPLC method, but as the method used is not optimally suited for this substance, this study is considered a supporting study.