Registration Dossier
Registration Dossier
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EC number: 231-968-4 | CAS number: 7782-89-0
Hydrolysis
Administrative data
Link to relevant study record(s)
- Endpoint:
- hydrolysis
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
No experimental determination of the abiotic degradation (hydrolysis as a function of pH) has been performed. Lithium amide reacts heavily with water making the study difficult to perform. In addition, any degradation of lithium amide will result in lithium hydroxide and ammonia in water. Lithium hydroxide will dissociate in lithium and hydroxide ions. Ammonia gas and ammonium ion will evolve and form a dissociation equilibrium, which depends on the pH of the water.
Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004, is not considered appropriate as neither the lithium cation, the hydroxide anion nor the ammonium ion have a potential mechanism for further hydrolysis. Therefore no further investigation is required.
Reference
Description of key information
Study is technically not feasible.
Key value for chemical safety assessment
Additional information
According to Annex XI, Section 2 of Regulation (EC) No 1907/2006 (REACH) testing for a specific endpoint may be omitted if it is technically not possible to conduct the study as a consequence of the properties of the substance itself. No experimental determination of the abiotic degradation (hydrolysis as a function of pH) has been performed. Lithium amide reacts heavily with water making the study difficult to perform. In addition, any degradation of lithium amide will result in lithium hydroxide and ammonia in water. Lithium hydroxide will dissociate in lithium and hydroxide ions. Ammonia gas and ammonium ion will evolve and form a dissociation equilibrium, which depends on the pH of the water.
Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004, is not considered appropriate as neither the lithium cation, the hydroxide anion nor the ammonium ion have a potential mechanism for further hydrolysis. Therefore no further investigation is required.
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.
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