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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Oxidising properties

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Administrative data

Link to relevant study record(s)

Description of key information

In accordance with Column 2, specific rules for adaptation from Column 1, of Annex VII of the REACH Regulation, the oxidising properties study, required in section 7.13, does not need to be conducted based on its chemical structure. Ditantalum pentaoxide is an inorganic oxide in which the inorganic element is in its highest possible oxidation state +5. Therefore, the substance is not sensitive to oxygen release.

Key value for chemical safety assessment

Oxidising properties:

Additional information

Ditantalum pentaoxide has been predicted to be incapable of oxygen release due to its chemical structure.

Justification for classification or non-classification

No classification is required in accordance with Regulation (EC) No. 1272/2008 or Directive 67/548/EEC.