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: 209-047-3 | CAS number: 553-72-0
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation is not applicable to metals/inorganic substances. Tests are not to be conducted if the substance is inorganic (Column 2 of Annex VII of REACH regulation).
As a surrogate approach for assessing "degradability", the concept of "removal from the water column" has been developed to assess whether or not a respective metal ion would remain present in the water column upon addition (and thus be able to exert a chronic effect) or would be rapidly removed from the water column. In this concept, "rapid removal" (defined as >70% removal within 28 days) can be considered as equivalent to "rapid degradation". For zinc in water, information is available on the removal of zinc from the water column (IUCLID section 5.6.). The removal from the water column was modelled referring to the EUSES model parameters and different conditions of pH. Zinc is removed by > 70% under the reference conditions for the EU regional waters (EUSES) (see IUCLID section 5.6.: "removal from the water column", studies by Mutch Associates LLC, 2010 a,b). Consequently, zinc is considered as equivalent to being "rapidly degradable" in the context of classification for chronic aquatic effects.
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.
