Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

Diss Factsheets

Environmental fate & pathways

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

biodegradation in soil: simulation testing
Data waiving:
other justification
Justification for data waiving:
Transformation products:

Description of key information

Data waiving:

Reason: Other justification.

Justification: 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. Further biotic degradation testing is not necessary as long as the Chemical Safety Assessment, conducted according to Annex I, does not indicate that it is required. The process of biodegradation is not a relevant fate pathway for inorganic tungsten compounds such as tungsten trioxide.

Key value for chemical safety assessment

Additional information