Registration Dossier
Registration Dossier
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EC number: 943-434-4 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Read-across from analogue substances Alcamizer 5 (EC 422-150-1) and Aluminium-magnesium-zinc-carbonate-hydroxide (EC 423-570-6):
No significant inhibition in respiration rate of the sludge is expected at a loading rate of 100 mg Aluminium magnesium carbonate hydroxide/L.
Overall conclusion: 30 min EC50 > 100 mg/L (> solubility limit in water)
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
Read-across from analogue substances Alcamizer 5 (EC 422-150-1):
No significant inhibition in respiration rate of the sludge (>10%) was recorded at 100 mg ALCAMIZER 5/L. The duplicate measurement
confirmed the result of the first measurement. Study performed according to OECD 209 and GLP guidelines.
Read across from Aluminium-magnesium-zinc-carbonate-hydroxide (EC 423-570-6):
No significant inhibition in respiration rate of the sludge was recorded at 100 mg substance/L in a OECD 209 test performed according to GLP
principles.
Conclusion:
Based on reliable studies with the analogue substances Alcamizer 5 and Aluminium-magnesium-zinc-carbonate-hydroxide, Aluminium magnesium carbonate hydroxide is considered to have no inhibitory effect on the microorganisms of a water treatment plant at loading rates of 100 mg/L.
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