Registration Dossier
Registration Dossier
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EC number: 235-310-7 | CAS number: 12163-26-7
Short-term toxicity to fish
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 freshwater and saltwater fish and respective endpoints are above respective OECD test limits.
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.
Magnesium diniobate: The solubility of magnesium diniobate (MgNb2O6) in environmental media is expected to be low since dissolution in water resulted in Mg concentrations < 25 microg/L and Nb concentrations < 0.2 microg/L after 34 days. Thus, in accordance with Column 2 of Annex VIII of Regulation (EC) No 1907/2006 "aquatic toxicity is unlikely to occur since the substance is highly insoluble in water".
Key value for chemical safety assessment
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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