Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 269-110-6 | CAS number: 68187-58-6 The residue from the distillation of thermal cracked or steam-cracked residuum and/or catalytic cracked clarified oil with a softening point from 40°C to 180°C (104°F to 356°F). Composed primarily of a complex combination of three or more membered condensed ring aromatic hydrocarbons.
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
No Koc value is derivable for petro pitch due to practical insolubility in water and complexity of its composition. Benzo[a]pyrene serves as marker substance. Koc and log Koc are estimated based on the log Kow of BaP (see above).
Key value for chemical safety assessment
- Koc at 20 °C:
- 832 000
Additional information
The following values relate to the marker substance benzo[a]pyrene (BaP): 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 value is estimated using the experimental equation derived by Karickhoff et al. (1979): Koc = 0.63 Kow (or log Koc = 1.00 log Kow – 0.21).
[LogKoc: 5.92]
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
