Registration Dossier
Registration Dossier
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EC number: 700-733-2 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The NOEC of the substance is 100 mg/L, the EC50 is > 1000 mg/L and the EC10 is 262 mg/L to activated sludge of a municipal sewage treatment plant.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 262 mg/L
Additional information
A Respiration Inhibition Test with activated sludge according to OECD 209 was carried out with the substance under static conditions with the nominal substance concentrations 100 -320 -1000 mg/L. The respiration rates of the control, reference and test substance replicates were measured after a contact time of 3 h, and the inhibitory effects of the test and reference substance were determined in comparison to the control respiration rates. The mean inhibition of respiration for the test substance replicates ranged from 2 % to 24 %.
As a result of the test, the NOEC of the substance was determined to be 100 mg/L, the EC50 is > 1000 mg/L and the EC10 is 262 mg/L to activated sludge of a municipal sewage treatment plant.
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.
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