Registration Dossier
Registration Dossier
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EC number: 431-920-4 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
0% respiration inhibition of activated sludge at a test item concentration of 10000 mg/l
EC50> 10000 mg/l
Key value for chemical safety assessment
- EC50 for microorganisms:
- 10 000 mg/L
- EC10 or NOEC for microorganisms:
- 10 000 mg/L
Additional information
A study was performed to assess the toxicity of Indigo aus Indigo-Küpe 40 % to bacteria. The study was conducted in accordance with the Commission Directive 88/302/EEC; Official Journal of the EC L133 Part C (1988).
The activated sludge was exposed to Indigo aus Indigo-Küpe 40 % at different concentrations.
The respiration rate of each mixture was determined after aeration periods of 3 hours.
Indigo aus Indigo-Küpe 40 % showed 0 % respiration inhibition of activated sludge at a test item concentration of 10000 mg/L.
Thus, the EC50 is higher than 10000 mg/L.
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