Registration Dossier
Registration Dossier
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EC number: 914-309-1 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to microorganisms:
- EC50 (3h) = 41 mg/L (solubilized fraction of the test item) (OECD TG 209)
- EC50 (3h) = 665 mg/L (initial test item) (OECD TG 209)
Key value for chemical safety assessment
Additional information
The toxicity of the test item REACTION MASS OF AlF3/CrF3/NiF2 to micro-organisms was assessed by the GRL (2010) in a respiration Inhibition test according to the OECD Guideline 209 and in compliance with OECD (2004) Good Laboratory Practice standards. The respiration rate of an activated sludge (domestic) fed with a standard amount of synthetic sewage feed was measured after a contact time of 3 hours. The respiration rate of the same activated sludge in the presence of various concentrations (5.77, 11.55, 23.1, 46.2 and 92.4 mg/L ; factor 2) of the test item REACTION MASS OF AlF3/CrF3/NiF2 under otherwise identical conditions was also measured. So, an EC 50 value was calculated.
Exposure of bacteria to the test item REACTION MASS OF AlF3/CrF3/NiF2 resulted in a 3h-EC50 of approximately 41 mg/L when considering the solubilized fraction of the test item, which corresponds to 665 mg/L when considering the initial test item engaged in the determination.
The test fulfilled the validity criteria according to OECD guideline N° 209.
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