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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: - | CAS number: -
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
According to Annex XI of Regulation 1907/2006, testing for a specific endpoint may be omitted if testing does not appear to be scientifically necessary or if it is technically not possible to conduct the study as a consequence of the properties of the substance. Under REACH (ECHA 2008, Chapter R.7B – Endpoint Specific Guidance), the term ‘Hydrolysis’ refers to the “Decomposition or degradation of a chemical by reaction with water”, and this as a function of pH (i.e., abiotic degradation). In the case of NMC, the chemical safety assessment is based on elemental metal concentrations. For indicative behaviour of the UVCB in water - see IUCLID section 4.8 or CSR Section 1.3. Also, in accordance with column 2 of REACH Annex VIII, it is considered that the hydrolysis study listed under standard information requirement 9.2.2.1. does not need to be conducted as the substance consists of inorganic atoms with no covalent chemical bonds to be broken by the action of water. It is not subject to ready biodegradability testing and hence hydrolysis testing is also exempted on this basis. The transformation/dissolution data give an acceptable indication of behaviour.
Key value for chemical safety assessment
Additional information
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.
