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EC number: 231-176-9
CAS number: 7440-67-7
The self-ignition temperature of ZirconiumShot was determined to be 389°C according to EEC method A.16. On the basis of expert judgement, this value is assumed to be relevant also for Zirconium sponge.
One source of information indicate that the auto flammability of
zirconium is >200°C.(Kirk-Othmer, 1978- 1984)
According to Annex VII, section 7.12, column 2, the study does not need
to be conducted when the substance ignites spontaneously with air at
as stated in the harmonised Classification and Labelling (CLP N°
1272/2008, annex VI), zirconium powder is classified "pyr sol.1"
and zirconium powder dry is classified "self heat 1"
A test has been performed by SIEMENS on zirconium shot (granulometry >
0.5mm and <2.8mm) following EEC Method A 16. This test shows that the
self-igition temperature of zirconium was 389°C, which is selected as
key value. On the basis of expert judgement, this result is assumed to
be relevant also for Zirconium sponge.
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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