Registration Dossier
Registration Dossier
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EC number: 203-471-2 | CAS number: 107-19-7
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Depending on local conditions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 1 000 mg/L
Additional information
As key study concerning acute toxicity to microorganisms a short-term respiration inhibition test performed by BASF (2001) according to OECD guideline 209 was identified, using domestic activated sludge as inoculum. In the static test an EC20 of 2.5 mg/L and an EC50 > 1000 mg/L after 30 minutes of exposure were derived.
Based on the EC20 value, it can be concluded that disturbances in the biodegradation process of activated sludge are possible depending on local conditions and existing concentrations.
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