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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 292-607-4 | CAS number: 90640-86-1 Distillate from the fractional distillation of coal tar of bituminous coal, with boiling range of 240°C to 400°C (464°F to 752°F). Composed primarily of tri- and polynuclear hydrocarbons and heterocyclic compounds.
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Half-lives between 16 and 377 days have been determined for main constituents of AOH. A value in the upper part of this range is considered to represent best the overall biodegradation of AOH in soil.
Key value for chemical safety assessment
- Half-life in soil:
- 260 d
Additional information
Biodegradation in soil of the substance distillates (coal tar), heavy oils (anthracene oil >50 ppm BaP, AOH), will best be characterised by half-lives determined for individual constituents of the substance. Main components are 3-ring and 4-ring PAH (phenanthrene, anthracene, fluoranthene and pyrene, see Chapter 1.2). For these substances, half-lives have been determined to be between 16 and 377 days (see table above). Results for three ring PAH indicate half-lives predominantly below 120 days while half-lives of 4-ring PAH have been determined to be above 180 days.
Half-lives for 4-ring PAH reported in the Park study imply some uncertainty as duration of the test was only 196 and 105 days for soil #1 and #2 respectively.
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.
