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Diss Factsheets
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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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Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-12-15
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.10 (Flammability (Solids))
- Deviations:
- no
- GLP compliance:
- no
- Key result
- Test procedure:
- burning rate test: preliminary screening test
- Burning time:
- 340 s
- Remarks on result:
- other: Ignition occurred and combustion propagated along 200 mm of the powder train within 340 s.
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- In conclusion, in a preliminary screening test, ignition of the test substance Niobium(II) oxide occurred and combustion propagated along 200 mm of the powder train within 340 s. According to the guideline, performance of a main study for the determination of the burning rate of the test substance was not required. Therefore, Niobium(II) oxide is considered as not highly flammable.
- Executive summary:
The flammability of Niobium(II) oxide (>99.5 % purity) was tested according to Regulation 440/2008/EC Method A.10. In a preliminary screening test, the test substance was formed into a powder train about 250 mm long, 20 mm wide and 10 mm high. When a hot flame was applied, ignition occurred and combustion propagated along 200 mm within 340 s.
According to the guideline, performance of a main study for the determination of the burning rate of the test substance was not required. Based on the results obtained, the test substance is considered as not highly flammable.
Reference
Results of the preliminary screening test
The test substance was formed into a powder train about 250 mm long by 20 mm wide by 10 mm high on a fireclay plate. A hot flame from a gas burner was applied to one end of the powder train. Ignition occurred and combustion propagated along 200 mm of the powder train within 340 s.
Burning rate test
Since combustion propagated along 200 mm in more than 45 s the test substance has not to be considered as highly flammable and no further testing was required.
Result
The test substance Niobium (II) oxide (NbO) is not highly flammable.
Description of key information
The flammability of Niobium(II) oxide (>99.5 % purity) was tested according to Regulation 440/2008/EC Method A.10. In a preliminary screening test, the test substance was formed into a powder train about 250 mm long, 20 mm wide and 10 mm high. When a hot flame was applied, ignition occurred and combustion propagated along 200 mm within 340 s.
According to the guideline, performance of a main study for the determination of the burning rate of the test substance was not required. Based on the results obtained, the test substance is considered as not highly flammable.
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
Justification for classification or non-classification
Since the combustion time of the test substance exceeds 45 seconds, Niobium(II) oxide is not classified as flammable solid in accordance with UN GHS Rev. 6 criteria.
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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