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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Short-term toxicity

The short-term toxicity to aquatic organisms studies that have been entered to assess the aquatic toxicity of cerium trifluoride, have all been read across from the structurally similar substance dicerium tricarbonate. Both substances additionally have similar toxicological and environmental profiles and therefore this read across is considered acceptable.

The results are as follows:

96 hour LL50 to Oncorhynchus mykiss > 100 mg/L

48 hour LL50 to Daphnia magna > 100 mg/L

72 hour EL50 to Scenedesmus subspicatus > 100 mg/L

Long-term toxicity

In accordance with Column 2, specific rules for adaptation from Column 1, of REACH Annex IX, the long-term testing on daphnia and fish studies, listed under standard information requirements 9.1.5 and 9.1.6 respectively, do not need to be conducted as the chemical safety assessment concludes that the substance is of no immediate concern to the environment. The available data are adequate for classification and labelling purposes and PBT assessment is not applicable for inorganic substances, so no further testing is required.


In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No. 1272/2008, the test material does not require classification for aquatic toxicity.