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EC number: 231-150-7
CAS number: 7440-41-7
The appraisal of the molecular structure indicates no risk of rapid
decomposition. Beryllium metal powder does not contain any of the
structural features mentioned in the UN Recommendations on the Transport
of Dangerous Goods, Manual of Tests and Criteria (5th revised edition).
The occurrence of other chemical groups associated with explosive
properties as described in the literature1 was also considered. No such
groups were present.
The oxygen balance is not considered relevant for the evaluation of the
explosive properties of this substance as it is a metal powder,
containing only Be.
The exothermic decomposition energy was determined using Differential
Scanning Calorimetry in a closed, gold plated high pressure vessel
(DSC). The decomposition energy was found to be far below the UN limit
of 500 J/g.
The purpose of this study was to estimate the explosive properties of
beryllium metal powder based on the UN Recommendations on the Transport
of Dangerous Goods, Manual of Tests and Criteria, Fifth revised edition,
2009, “Orange Book” where a set of criteria is compiled to identify
materials being potential explosives.
Applying the screening procedure (Appendix 6), beryllium metal powder
does not contain any chemical group which indicates explosive
properties. Beryllium metal powder is not to be classified as explosive
material and no experimental determination has to be performed. Thus it
can be concluded that beryllium metal powder is not a potential
explosive and does not have any potential for rapid energy release. The
substance is not classified as explosive.
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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