Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 237-529-3
CAS number: 13826-66-9
Based on a theoretical assessment and on the observed endothermic
reactions in the DSC analysis, zirconium dinitrate oxide is concluded to
be non-flammable. Day-to-day handling of the substance shows that the
substance is not flammable in contact with water or with air.
Flammability is usually seen as the ease with which the substance can
burn or be ignited. However it also includes spontaneous flammability
(pyrophoricity) and ignition on contact with water.
In the daily use and handling of zirconium dinitrate oxide during which
continuous exposure to air can occur, no spontaneous ignition is
observed. The absence of structural alerts furthermore confirms that it
is highly unlikely that zirconium dinitrate oxide has pyrophoric
Flammability in contact with water
Zirconium dinitrate oxide is used as aqueous solution. It is soluble in
water and known to form a stable mixture with water.
Under conditions where zirconium dinitrate oxide is in contact with
water no ignition and/or liberation of flammable gases is observed. The
absence of structural alerts furthermore confirms that it is highly
unlikely that zirconium dinitrate oxide is flammable in contact with
Inorganic substances in which the elements other than oxygen are in
their highest possible oxidation state are incapable of further reaction
with oxygen and can thus be designated as non-flammable. The oxidation
states of zirconium and nitrogen in zirconium dinitrate oxide are (4+)
and (5+), respectively. These are the highest oxidation states of
zirconium and nitrogen, respectively, and thus zirconium dinitrate oxide
can be considered as non-flammable. Moreover, when zirconium dinitrate
oxide is heated it decomposes over successive dehydration phases. This
decomposition becomes significant at approximately 90°C and - in the end
- results in the formation of zirconium dioxide. Decomposition is an
endothermic reaction making the substance not liable to burning.
Following the above assessment it is concluded that zirconium dinitrate
oxide is non-flammable and should thus not be classified for this
endpoint under the CLP regulation.
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.
Questo sito web si avvale di cookie affinché possiate usufruire della migliore esperienza sui nostri siti web.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again