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EC number: 939-967-7
CAS number: -
Because erbium oxide (CAS 12061-16-4) and zirconium dioxide (CAS 1314-23-4) are both non-classified, non-hazardous compounds, it was decided to include both data for zirconium dioxide and erbium oxide in the dossier for some critical endpoints and to conclude on the properties of erbium zirconium oxide based on this information, instead of performing new tests with erbium zirconium oxide for all required endpoints. Based on the outcome of the comparison of these critical properties of erbium oxide and zirconium dioxide, it was considered sufficient to cover other endpoints by information on zirconium dioxide alone. Only for some physicochemical endpoints (appearance, relative density, water solubility, particle size distribution), data on erbium zirconium oxide were included. Justification for this approach is given in the read across justification document attached to IUCLID Section 13.
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.
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