Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 937-221-5 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Sediment (marine water)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
All the justifications for no PNEC derivation are given above.
Conclusion on classification
As an inorganic substance, the reaction mass of neodymium carbonate and praseodymium carbonate is not biodegradable. Based on data obtained with soluble salts of neodymium and praseodymium, the reaction mass should not show any potential for bioaccumulation. Short-term tests performed on the three trophic levels (i.e. fish, daphnids, algae) does not reveal any acute toxicity. Furthermore, the long-term data on algae indicate that the reaction mass presents no chronic adverse effects on this species. As a result, the reaction mass of neodymium carbonate and praseodymium carbonate is not classified regarding its environmental impacts, according to the classification criteria of Annex VI of Directive 67/548/EEC (DSD), Regulation (EC) No 1272/2008 (EU CLP), and UN GHS.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
