Registration Dossier
Registration Dossier
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EC number: 234-525-3 | CAS number: 12007-99-7
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1992
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study has been performed according to German guidelines by an independent laboratory.
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263, Blatt 1: "Staubbrände und Staubexplosionen, Gefahren - Beurteilung - Schutzmaßnahmen; Untersuchungsmethoden zur Ermittlung von sicherheitstechnischen Kenngrößen von Stäuben"
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- 400-mesh powder (<30 µm) as commercially available
- Key result
- Test procedure:
- other: screening test
- Remarks:
- VDI 2263
- Remarks on result:
- other: Flammability class
- Remarks:
- BZ2
- Interpretation of results:
- non flammable
- Conclusions:
- According to the results of the evaluation on burning behaviour, BZ2 has been assigned to calcium hexaboride powder and BZ4 has been assigned to CaB6 filter dust. Based on the burning behaviour of CaB6 in this test, it can be concluded that CaB6 as commercialized does not have to be classified as highly flammable. No labelling is required for CaB6.
- Executive summary:
The test was performed under a German national guideline (VDI 2263) by an authority involved in occupational safety. The method is considered a suitable screening level flammability test under CLP. The result is deemed reliable with restrictions and suitable for Classification & Labeling.
- Endpoint:
- flammable solids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Referenceopen allclose all
Specific observation on the dusts were not provided. Commercial calcium boride powder was assigned a flammability class of BZ2. Filter dust (not commercially available) was assigned a flammability class of BZ4.
Description of key information
Calcium hexaboride is not a flammable solid.
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
Flammable solids classification under CLP may be based on a result of BZ3 or lower in a test done under VDI 2263. The commercialized product was assigned BZ2 in a VDI 2263 test. No further testing is required of this inert substance.
Justification for classification or non-classification
Substance does not meet classification criteria in a screening level test.
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.
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