Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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: 942-925-0 | CAS number: -
Flammability
Administrative data
Link to relevant study record(s)
Description of key information
a) Flammability:
Zinc, 5,5'-azobis-2,4,6(1H,3H,5H)-pyrimidinetrione complexes and melamine is a not flammable solid. According to UN N.1 the substance did not burn down.
b) Pyrophoric properties:
Zinc, 5,5'-azobis-2,4,6(1H,3H,5H)-pyrimidinetrione complexes and melamine did not deliver indications of pyrophoric properties during the realization of other tests. The determination according to UN-RTDG Procedure N.3 is not necessary.
c) Flammability on contact with water:
Zinc, 5,5'-azobis-2,4,6(1H,3H,5H)-pyrimidinetrione complexes and melamine is not able to release flammable gases in contact with water. It is a zinc salt of azolinked barbituric acid derivative and can be prepared by reacting the acid with zinc hydroxide in aqueous solution. Moreover, the two hydrate molecules in the crystalline compound clearly indicate the stability in the presence of water. Therefore, it can be concluded by expert judgement that zinc, 5,5'-azobis-2,4,6(1H,3H,5H)-pyrimidinetrione complexes and melamine does not emit flammable gases in contact with water. Testing according to UN Procedure N.5 is not necessary.
Key value for chemical safety assessment
- Flammability:
- non flammable
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.
