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Physical & Chemical properties

Partition coefficient

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Description of key information

The partition coefficient (log Pow) of Butenes ranges from 2.31 to 2.4. This data was reported for the members of the butenes category; but-1-ene (CAS no 106-98-9) and 2-methylbutene (CAS no 115-11-7). 

Key value for chemical safety assessment

at the temperature of:
20 °C

Additional information

The handbook by Hansch et al. (1995) is critically evaluated and considered reliable and suitable for use as a key study for this endpoint. The partition coefficient (log Pow) of the Butenes ranges from 2.31 to 2.4.

The partition coefficient (Log Pow) of 2-methylpropene is 2.34 (Hansch, 1995). The log Kow of 2-butene ranges from 2.31 - 2.33 (Hansch, 1995). The partition coefficient (Log Pow) of but-1-ene is 2.4 (Hansch, 1995).