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Physical & Chemical properties

Partition coefficient

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Description of key information

The n-octanol-water partition coefficient of 1, 1- diphenylethane was determined using the HPLC method (OECD guideline 117). Based on duplicate determinations, the log Pow of  1,1 diphenylethane was determined to be  4.48 at 25°C.
In an additional study the log Pow was determined as 4.52.

Key value for chemical safety assessment

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

Additional information

The reported studies are GLP compliant and have Klimisch score 1. The n-octanol-water partition coefficient (log Kow) of 1,1 -DPE was estimated as 4.48 and 4.52. No further testing is therefore required.