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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties

Partition coefficient

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Description of key information

Key information: Partition coefficient (OECD 117, HPLC method): Pow > 2.5 x 10E9, logPow > 9.4 at 30 °C.
Supporting information: Partition coefficient (OECD 107, shake flask method): logPow range: 1.72 - 2.94 at 21 °C.

Key value for chemical safety assessment

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

Additional information

The key value was determined by High Performance Liquid Chromatography (HPLC) according to OECD 117 / EU Method A.8 (Fox, 2012). Further information is available from an experiment conducted according to OECD 107, revealing a logPow range of 1.72 - 2.94 at 21 °C (Rocchio, 1990). In this case, the test material stock solution prepared in methanol rather than octanol as recommended.

For purpose of exposure assessment calculations, a logKow of 8.0 was taken into consideration, since this value represents the maximum valid logKow value in the algorithms of EUSES or EU-TGD approach.