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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 266-024-0 | CAS number: 65996-89-6 The condensation product obtained by cooling, to approximately ambient temperature, the gas evolved in the high temperature (greater than 700°C (1292°F)) destructive distillation of coal. A black viscous liquid denser than water. Composed primarily of a complex mixture of condensed ring aromatic hydrocarbons. May contain minor amounts of phenolic compounds and aromatic nitrogen bases.
Endpoint summary
Administrative data
Description of key information
Additional information
Coal tar produces low to high acute intoxication towards aquatic organisms: Closed testing conditions that are intended to minimise evaporation resulted in higher acute toxicity, while open test systems that allow ready exchange with the surrounding atmosphere showed low toxic impact (see comparative daphnia tests).
Hence, the effective 50% toxicity values ranged from 2.8 mg/L to > 100 mg/L:
Species |
Guideline |
Test conditions |
Toxicity value |
Water solubility [TOC] |
Daphnia magna |
OECD 202 |
48 h, static, closed |
EL50= 2.8 mg/L |
WAF = < 1 mg/L |
Daphnia magna |
OECD 202 |
48 h, static, open |
EL50= 72 mg/L |
WAF ~ 2 mg/L |
Fish (Danio rerio) |
OECD 203 |
96 h, semi-static, open |
LL50> 250 mg/L |
WAF >= 2.5 mgL |
Alga (Desmodesmus subspicatus) |
OECD 201 |
72 h, static, open |
ErL50= 29 mg/L |
WAF ~ 1.5 mg/L |
EL and LL = effective and lethal loading, respectively
WAF = water-accommodated fraction
TOC = Total Organic Carbon
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.
