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Partition coefficient

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Description of key information

The log kow of the xylene isomers and ethylbenzene ranges from 3.12 to 3.2. The log kow of m-xylene was reported as 3.2, for o-xylene as 3.12, for p-xylene the log kow is 3.15, and for ethylbenzene the log Kow is 3.15. The mean value of 3.16 will be used for the risk assessment.

Key value for chemical safety assessment

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

Additional information

Hansch et al (1995) is a peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. The data are supported by the results from another review article (Leo et al 1971), which give partition coefficients for m-xylene, o-xylene, p-xylene and ethylbenzene of 3.2, 2.77, 3.15 and 3.15 respectively.