Registration Dossier
Registration Dossier
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EC number: 215-213-6 | CAS number: 1313-96-8
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Niobium is insoluble in water and not bioavailable to aquatic species. The substance cannot be absorbed via skin or gastrointestinal tract. Thus, there is no potential for bioaccumulation of niobium.
Key value for chemical safety assessment
Additional information
The defining characteristic of the inorganic diniobium pentaoxide is its insolubility in water. The Diniobium pentaoxide remains stable in water and does not hydrolyse. It cannot be adsorbed and metabolised by living beings but would be excreted and thus does not bioaccumulate.Based on its intended uses (manufacture of superalloys, as a catalyst or to produce lenses) the substance is not expected to enter into the environment by any pathway. The substance is judged to be an inert, harmless substance which according to its uses does not enter the environment. Consequently, environmental effects have never been reported. Additionally, a bioaccumulation test is technically hardly feasible due to the highly insolubility of the substance and is not necessary due to the non-hazardous character of the substance.
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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