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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 255-272-5 | CAS number: 41233-93-6
Storage stability and reactivity towards container material
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with Regulation (EC) 1907/2006Annex XI and ECHA guidance on the application of CLP criteria section 2.15 the UN test C.1 does not need to be conducted as the substance is a solid with a melting point above 55 °C.
Additional information
In accordance with Regulation (EC) 1907/2006Annex XI and ECHA guidance on the application of CLP criteria section 2.15 the UN test C.1 does not need to be conducted as the substance is a solid with a melting point above 55 °C.
The test substance per se is not corrosive to metals. The test substance is hygroscopic. In contact with very small amounts of water, sodium hydroxide is formed as one of the hydrolysis products.
Light metals like aluminium or zinc are not compatible, because the test substance reacts with light metals forming explosive hydrogen.
The substance will be stored in Polyethylene packagings under dry conditions.
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.
