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Physical & Chemical properties

Water solubility

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Description of key information

At a loading of 1000 mg petro pitch/L, the mean TOC of the water-soluble fraction (WAF) was 0.4 mg/L. at 20 °C. 
A total of 0.8 to 1.4 µg/L was found in the WAF of a loading of 100 mg pitch/L at 21 °C, related to the 16 EPA PAHs (here: analogy to coal-tar pitch).

Key value for chemical safety assessment

Water solubility:
0.002 mg/L
at the temperature of:
20 °C

Additional information

The stated water solubility relates to the marker substance, benzo(a)pyrene (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.