Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties


Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

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
explosiveness, other
Type of information:
experimental study
Adequacy of study:
supporting study
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
according to guideline
other: VDI 2263
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
migrated information
Remarks on result:
negative (not further specified)
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
Interpretation of results:
GHS criteria not met
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.

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

non explosive

Additional information

Justification for classification or non-classification