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Physical & Chemical properties

Partition coefficient

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Description of key information

Determination of Pow not applicable to coal-tar pitch, but to single PAHs.

Key value for chemical safety assessment

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

Additional information

An octanol-water partition coefficient cannot be determined for the almost water-insoluble complex coal-tar pitch. The given logPow value, an average of published data, relates to benzo(a)pyrene, the marker substance (EU 2008, Tab. 1.6).


EU (2008) Coal-Tar Pitch, high temperature - Risk Assessment. European Union Risk Assessment Report, The Netherlands [ ]

According to EU 2008, presented data from:

Mackay D, Shiu WY, Ma KC (1992). lllustrated Handbook of Physical-Chemical Properties and Environmental Fate of Organic Chemicals. Lewis Publishers, Boca Raton, FL.