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EC number: 825-760-8 | CAS number: 39290-95-4
- 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

Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19 - 20 September 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test O.3 (Gravimetric test for oxidizing solids)
- Version / remarks:
- Sixth revised edition (2015)
- Deviations:
- yes
- Remarks:
- see 'Principles of method if other than guideline'
- Principles of method if other than guideline:
- The reference item purity is 79.1% in CaO2 instead of 75% ± 0.5% as described in the method.
For reference item / cellulose mixture 1:2, the relative standard deviation was higher than 10%.
Considering that no burning of the mixtures of the test item / cellulose was observed, these deviations were not considered to have affected the quality or the interpretation of the results obtained. - GLP compliance:
- yes (incl. QA statement)
- Contact with:
- powdered cellulose
- Key result
- Sample tested:
- 1:1 sample-to-cellulose ratio
- Parameter:
- burning rate
- Remarks on result:
- mixture does not ignite and burn
- Key result
- Sample tested:
- 4:1 sample-to-cellulose ratio
- Parameter:
- burning rate
- Remarks on result:
- mixture does not ignite and burn
- Sample tested:
- reference: 1:2 mixture calcium peroxide + cellulose
- Parameter:
- burning rate
- Result:
- 0.254 g/s
- Remarks on result:
- other: Mean of 5 assays
- Remarks:
- The mixture ignited and combustion was observed.
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The oxidising properties of tungsten zirconium hydroxide oxide (CAS No. 1037842-83-3) were investigated according to the UN O.3 test method in compliance with GLP. No reaction with the test item / cellulose mixture in proportions 4:1 or 1:1 was observed.
Therefore, the test item was not considered as an oxidising solid following GHS terminology and was not classified in Division 5.1 and thus was not assigned to any packing group following the “UN Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria”.
Reference
No reaction with the test item / cellulose mixture in proportions 4:1 or 1:1 was observed.
If the test item, in both the 4:1 and 1:1 sample-to-cellulose ratio (by mass) tested, does not ignite and burn, or exhibits mean burning rates less than that of a 1:2 mixture (by mass) of calcium peroxide and cellulose, it is not assigned to Division 5.1 and not classified as an oxidising solid under the CLP regulation (EC) No. 1272/2008 in GHS terminology.
Description of key information
In a key study (Klimisch 1, Demangel, 2018), the oxidising properties of tungsten zirconium hydroxide oxide were investigated according to the UN O.3 test method in compliance with GLP. The test item was not considered as an oxidising solid following GHS terminology and was not classified in Division 5.1 and thus was not assigned to any packing group following the “UN Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria”.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
Justification for classification or non-classification
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