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Diss Factsheets
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EC number: 231-034-6 | CAS number: 7417-99-4
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 01 September 2017 - 13 September 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Test method according to EEC method A.16. GLP study.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Relative self-ignition temperature:
- 391 °C
- Conclusions:
- The relative self-ignition temperature of the tested material is 391ºC according to EU method A.16 criteria.
- Executive summary:
The determination of the self-ignition temperature of the tested material was performed according to EU Method A.16 (GLP study). A cube of stainless steel wire mesh was filled with the test item, suspended in the centre of the laboratory oven and heated at a constant rate of 0.5ºC/min until reaching 400ºC. One thermocouple was placed at the centre of the cube and the other between the cube and the oven wall to record the oven temperature. Based on the test method, the temperature of the oven at which the sample temperature reaches 400 °C is the self-ignition temperature. According to the results, the relative self-ignition temperature of the tested material is 391ºC.
Reference
At the oven temperature of 157 °C there is a rapid rise in temperature
in the sample but sample temperature only reaches a maximum temperature
317 °C. At the oven temperature of 391 °C, the sample temperature
reaches 400 °C. According to the criteria of the method A.16 the
observed phenomenon indicates that the relative self-ignition
temperature of the sample is 391 °C. See image attached.
Description of key information
Key study. Test method according to EU Method A.16, GLP study. The relative self-ignition temperature of the tested material is 391ºC.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 391 °C
Additional information
Key study. The determination of the self-ignition temperature of the tested material was performed according to EU Method A.16 (GLP study). A cube of stainless steel wire mesh was filled with the test item, suspended in the centre of the laboratory oven and heated at a constant rate of 0.5ºC/min until reaching 400ºC. One thermocouple was placed at the centre of the cube and the other between the cube and the oven wall to record the oven temperature. Based on the test method, the temperature of the oven at which the sample temperature reaches 400 °C is the self-ignition temperature. According to the results, the relative self-ignition temperature of the tested material is 391ºC.
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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