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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Partition coefficient: logPow = -0.9 at 25°C 

Key value for chemical safety assessment

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

Additional information

1,4 -Butenediol has an octanol-water partition coefficient (Log Pow) of -0.9 at 25 °C (BASF, 1988) as measured according to OECD Method 107 (BASF AG 1988). Other values, reported in reliable authoritative secondary sources, include a measured Log Pow of -0.81 (Hansch et al. 1995; GESTIS 2010) and an estimated LogPow of -0.43 (KOWWIN 1.67 Estimate 2010).