Registration Dossier
Registration Dossier
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EC number: 235-111-5 | CAS number: 12069-32-8
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties
- Endpoint:
- explosiveness, other
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263
- Deviations:
- no
- Principles of method if other than guideline:
- The methods of the various determinations are in detail explained in the attached background material:
Determination of the maximum explosion (over)pressure pmax
Determination of the KSt value
Determination of the dust explosibility - dust explosion classes - GLP compliance:
- not specified
- Parameter:
- other:
- Remarks:
- migrated information
- Remarks on result:
- negative (not further specified)
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The substance itself is not explosive. The lower limit for dust explosion is 125 mg/m3 which is 100 fold higher than the dust concentrations measured in a boron carbide production site (see attachment). Therefore dust explosiveness is not a concern.
Referenceopen allclose all
| Max. Ex-Overpressure | 8.2 bar |
| KSt Value | 139 bar m/s |
| Explosibility | St 1 (KSt < 200 bar m/s) |
| Lower Ex-limit g/m3 | 125 |
Description of key information
The study does not need to be conducted because there are no chemical groups present in boron carbide which are associated with explosive properties.
According to Column 2 of REACH Annex VII (standard information requirements for substances manufactured or imported in quantities of 1 tonne per year or more) of Regulation (EC) No 1907/2006, a study to determine the explosiveness does not need to be conducted if there are no chemical groups associated with explosive properties present in the molecule.
In addition, a supporting study indicates that boron carbide is not explosive.
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
Justification for classification or non-classification
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.
