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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Tantalum is chemically inert and thus not prone to hydrolysis at environmentally relevant pH values (4, 7, and 9). As it is inorganic, the substance cannot be biologically degraded.

In addition, tantalum is highly insoluble in water and not bioavailable to aquatic species. Bioaccumulation in aquatic species is not expected. Adsorption of dissolved Ta in soil/sediment pore water to soil/sediment particles is negligible.

Additional information