Registration Dossier
Registration Dossier
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EC number: 234-499-3 | CAS number: 12007-16-8
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016-06-21 to 2016-06-21
- 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:
- 0 s
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- In conclusion, in a preliminary screening test, no ignition of the test substance chromium diboride occurred in 5 minutes. According to the guideline, performance of a main study for the determination of the burning rate of the test substance was not required. Therefore, chromium diboride is considered as not highly flammable.
- Executive summary:
The flammability of chromium diboride was tested according to Regulation 440/2008/EC Method A.10.
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 for five minutes. There was no ignition observed. Since the test substance did not ignite it should not be considered as highly flammable and no further testing is required.
The test substance chromium diboride (CrB2) is non-combustible.
Reference
Since the test substance did not ignite it should not be considered as highly flammable and no further testing is required.
The test substance chromium diboride (CrB2) is non-combustible.
Description of key information
The flammability of Chromium diboride was tested according to 440/2008/EC Method A.10. Since no ignition occurred within 5 minutes no further testing was required and the test substance is considered as not highly flammable.
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
The flammability of Chromium diboride was tested according to Regulation 440/2008/EC Method A.10. 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 for five minutes. There was no ignition observed. Since the test substance did not ignite it should not be considered as highly flammable and no further testing is required.
The test substance Chromium diboride (CrB2) is non-combustible.
Justification for classification or non-classification
Since the test substance does not ignite, Chromium diboride is not classified as flammable solid in accordance with UN GHS Rev. 6 criteria.
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