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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
activated sludge respiration inhibition testing
Data waiving:
study technically not feasible
Justification for data waiving:
other:
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
In accordance with Section 2 of REACH Annex XI, this study does not need to be conducted as testing is not technically possible. It is not possible to produce a powdered form of the substance suitable for testing as the powdered form is flammable.
Furthermore, samarium metal is highly insoluble in water - testing the bulk form of the material (as supplied) would not generate test solutions with a sufficient amount of dissolved metal ions. Testing with the registered substance was therefore omitted.

Description of key information

In accordance with Section 2 of REACH Annex XI, this study does not need to be conducted as testing is not technically possible. It is not possible to produce a powdered form of the substance suitable for testing as the powdered form is flammable.

Furthermore, samarium metal is highly insoluble in water - testing the bulk form of the material (as supplied) would not generate test solutions with a sufficient amount of dissolved metal ions. Testing with the registered substance was therefore omitted.

Key value for chemical safety assessment

Additional information