Registration Dossier
Registration Dossier
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EC number: 235-310-7 | CAS number: 12163-26-7
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Aquatic toxicity studies with magnesium diniobate are not available, thus aquatic toxicity will be addressed with existing data on the dissociation products, i.e. magnesium and niobium ions.
Magnesium: Magnesium as an essential element has a very low potential for toxicity to aquatic microorganisms.
Niobium: displays a very low mobility under all but the most extreme environmental conditions due to the high stability and very low solubility of niobium oxides. In the GLP-conform sludge respiration inhibition test according to OECD 209 with diniobium pentaoxide, a 3h-EC50 value of > 100 mg/L (corresponding to > 70 mg Nb/L) was estimated.
Magnesium diniobate: Toxicity to aquatic microorganisms is unlikely to occur since toxicity was not observed for magnesium and niobium, respectively, at the highest concentration tested.
Key value for chemical safety assessment
Additional information
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