Registration Dossier
Registration Dossier
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EC number: 231-143-9 | CAS number: 7440-33-7
Endpoint summary
Administrative data
Description of key information
Abiotic degradation
Tungsten is a stable element and cannot degrade chemically. It can however, sometimes reversibly, participate in numerous chemical reactions that can proceed under a wide range of common environmental conditions. Thereby, different chemical compounds containing tungsten can be formed and also cease to exist, but the process of degradation is not a relevant fate pathway for tungsten metal (ATSDR, 2005).
Biotic degradation
In accordance with column 2 of REACH Annex VII, a test for ready biodegradability does not need to be conducted as the substance is inorganic. The process of biodegradation is not a relevant fate pathway for inorganic metal elements such as tungsten.
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.
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