Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to birds

Currently viewing:

Administrative data

Link to relevant study record(s)

long-term toxicity to birds: reproduction test
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:

Description of key information

The substance is not considered to cause toxic effects in birds.

Key value for chemical safety assessment

Additional information

As the test substance is not classified as toxic or harmful to mammals, the substance is also not considered to cause toxic effects in birds. Elemental niobium is physiologically inert. The toxico-kinetic behavior of niobium shows no absorption takes place even after oral ingestion. In artificial solutions, mimicking physiological relevant exposure condition’s in the body (i.e. artificial - sweat solution and - gastric fluid) niobium was found to be hardly soluble (see technical dossier chapter 7.1 on toxico-kinetics). In consequence, niobium is not bioavailable under physiological relevant conditions. Thus, a study with birds is scientifically unjustified. Taking also in consideration animal welfare reasons, testing with birds will be omitted.