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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 227-579-4 | CAS number: 5895-46-5
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity of dineodymium tricarbonate was approximated using data available for the closely related compound, dicerium tricarbonate. The 96hr LC 50 for rainbow trout (Oncorhynchus mykiss) exposed to dicerium tricarbonate was determined to be greater than 100 mg/L.
Key value for chemical safety assessment
Additional information
The toxicity of a closely related compound, dicerium tricarboante, was utilized to estimate the toxicity of dineodymium tricarbonate to freshwater fish.
The 96 -hour acute toxicity of dicerium tricarbonate to rainbow trout (Oncorhynchus mykiss) was determined in a semi-static test (daily test medium renewal) according to the EU Commission Directive 92/69/EEC, Part C.1 (1992), and the OECD Guideline for Testing of Chemicals No. 203 (1992).
Fish were exposed to control and dicerium tricarbonate at a loading rate of 100 mg/L for 96h. No mortality or other visible abnormalities were observed during the test (fish were observed daily). Consequently, the 96-hour NOELR and the 96-hour LL50 of dicerium tricarbonate to rainbow trout were thus determined to be > 100 mg/L (measured test item concentration of 5.6 µg/L).
In conclusion, dicerium tricarbonate had no acute toxic effects on rainbow trout up to the solubility limit in the test water, at the loading rate of 100 mg/L. Dineodymium tricarbonate is likely to exhibit the same toxicity toward rainbow trout.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.
