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EC number: 231-143-9
CAS number: 7440-33-7
According to Column 2 of
REACH Annex X, a carcinogenicity study may be required if the substance
has a widespread dispersive use or there is evidence of frequent or
long-term human exposure and the substance is classified as mutagen
category 3 or there is evidence from the repeated dose study(ies) that
the substance is able to induce hyperplasia and/or pre-neoplastic
lesions. The inhalation route is the most likely route of exposure for
tungsten metal and it is not classified as a mutagen and there was no
evidence of hyperplasia and/or pre-neoplastic lesions in a 28-day
inhalation study on tungsten oxide which was used for read-across for
No carcinogenicity data are available for tungsten metal. Therefore,
classification cannot be made due to lack of data.
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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