Registration Dossier
Registration Dossier
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EC number: 309-886-6 | CAS number: 101316-84-1 A tar obtained from low temperature carbonization and low temperature gasification of brown coal. Composed primarily of aliphatic, naphthenic and cyclic aromatic hydrocarbons, heteroaromatic hydrocarbons and cyclic phenols.
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Method C.11 - Activated Sludge Respiration Inhibition Test, Council Regulation (EC) No. 440/2008, published in O.J.L 142, 2008.
GLP study
Key value for chemical safety assessment
- EC50 for microorganisms:
- 188 mg/L
Additional information
Results of the respiration inhibition test
On the basis of the effective concentrations describing the respiration inhibition of activated sludge caused by the test substance, the EC50 was found to be:
EC50 = 188 mg/L (95% confidence interval: 73.8 – 357 mg/L)
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