Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Environmental fate & pathways

Adsorption / desorption

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

No Koc value is derivable for Pitch, coal tar, high-temp., < 1% 4- to 5-membered condensed ring aromatic hydrocarbons [EC no. 701-305-8] (CTPhtht] due to practical insolubility in water and complexity of its composition. Benzo[a]pyrene (BaP) serves as marker substance; thus, the given Koc relates to BaP.

Key value for chemical safety assessment

Koc at 20 °C:
832 000

Additional information

The given values relate to the marker substance, benzo[a]pyrene: The Koc has been estimated from the mean log Pow of 6.13 for BaP according to EU 2008 (Risk assessment of coal-tar pitch): Koc values estimated using the experimental equation derived by Karickhoff et al. (1979): Koc = 0.63 Kow (or log Koc = 1.00 log Kow – 0.21) ==> logKow = 6.13 --> LogKoc: 5.92.