Registration Dossier
Registration Dossier
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EC number: 231-164-3 | CAS number: 7440-56-4
Hydrolysis
Administrative data
Link to relevant study record(s)
- Endpoint:
- hydrolysis
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- ‘Hydrolysis’ refers to the “Decomposition or degradation of a chemical by reaction with water”, and is a concept that is relevant for organic compounds, that may or may not decompose in water, e.g. by abiotic degradation. The need for testing may be waived if “The substance is highly insoluble in water), or if “The substance is readily biodegradable”.
For metals and inorganic substances (germanium), the chemical safety assessment is based on the (bioavailable) concentrations of the ion, e.g. Ge2+,…,. For the bioavailable ionic concentration of the metal elements (MeX+), physicochemical processes like decomposition and degradation by reaction with water are not relevant. The applied pooling of all elemental-metal ions together, can be considered as a worst-case assumption for the assessment. In general, (abiotic) degradation is an irrelevant process for inorganic substances that are assessed on an elemental basis.
Reference
Description of key information
‘Hydrolysis’ refers to the “Decomposition or degradation of a chemical by reaction with water”, and is a concept that is relevant for organic compounds, that may or may not decompose in water, e.g. by abiotic degradation. The need for testing may be waived if “The substance is highly insoluble in water), or if “The substance is readily biodegradable”.
For metals and inorganic substances (germanium), the chemical safety assessment is based on the (bioavailable) concentrations of the ion, e.g. Ge2+,…,. For the bioavailable ionic concentration of the metal elements (MeX+), physicochemical processes like decomposition and degradation by reaction with water are not relevant. The applied pooling of all elemental-metal ions together, can be considered as a worst-case assumption for the assessment. In general, (abiotic) degradation is an irrelevant process for inorganic substances that are assessed on an elemental basis.
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.
