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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 234-808-1 | CAS number: 12034-57-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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Endpoint summary
Administrative data
Description of key information
Fish:
During the limit test conducted by Scheerbaum (2003) according to EU.C.1 with Nobium(II)-Oxide, no acute toxic to zebrafish (Danio rerio) were observed in saturated solution. The measured content of Niobium was < 1 mg/L (nominal loading 100 mg/L).
These results are supported by Lili (2005) who investigated the acute toxicity of the test item to zebrafish according to OECD Guideline 203 at several concentrations up to 100 mg/L using an emulsifier.
It can be concluded that the NOEC for 96h exposure of the test item to zebrafish is above 1 mg/L (measured concentration).
Aquatic Invertebrates:
The 48-h acute immobilisation test of Niobium(II)-Oxide to Daphnia magna was conducted under static conditions at the saturated solution level in accordance with the EC Directive 92/69/EC method C.2. No biological significant effect was observed.
Aquatic Algae:
In a 72-h acute toxicity study, the cultures of Desmodesmus subspicatus were exposed to Niobium(II)-Oxide at the saturated solution level under static conditions in accordance with the EC Directive 92/69/EC, C.3. Niobium(II)-Oxide was found not to inhibit the biomass growth and growth rate of the freshwater green alga D. subspicatus.
Microorganisms:
A Respiration Inhibition Test with activated sludge was performed for 3 h with the test item Niobium(II)-Oxide in accordance with the OECD Guideline 209 (1984). Results show that the test item is not toxic at concentrations ≤1000 mg/L to activated sludge of a municipal sewage treatment plant.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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