Registration Dossier
Registration Dossier
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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: 910-245-3 | CAS number: -
Oxidising properties
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- Oxidising properties:
- no
Additional information
This substance is a multi-constituent substance consisting of sodium hydroxide (215-185-5, 1310-73-2) and disodium metasilicate (229-912-9, 6834-92-0). It is the by-product of a reaction between zircon (EC no 239-019-6) and sodium hydroxide; after hydrolysis, this substance is the water-soluble fraction. It contains oxygen as part of its chemical structure. However, this oxygen is part of the silicate moiety (H4SiO4). This oxygen would not be available to oxidise other substances as the silicon cannot exist in a lower oxidation state and to decompose to element’s silicon would not be thermodynamically favourable. In accordance with column 2 of REACH Annex VII, the oxidising properties study does not need to be conducted as the substance is incapable of reacting exothermically with combustible materials on the basis of its chemical structure.
The above should be considered as an expert statement to fulfil the REACH registration requirements under Annex VII for endpoint 7.13.
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.
