Registration Dossier
Registration Dossier
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EC number: 237-252-8 | CAS number: 13709-38-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The LL50 was determined to be in excess of 100 mg/L
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 100 mg/L
Additional information
This study data is read-across from the analogous substance lanthanum oxide. The acute toxicity of the test material to Brachydanio rerio was investigated, under static conditions, according to the standardised guideline OECD Guideline 203. Since the study was conducted on the read across substance, lanthanum oxide, it was assigned a reliability score of 2 in accordance with the criteria set forth in Klimisch (1997).
During the study Brachydanio rerio were exposed to test material at a nominal concentration of 100 mg /L. Mortality was observed daily. No mortality was observed during the test, either in the control or in the group exposed to the test material. The 96 hour LL50 was therefore considered to be in excess of 100 mg/L.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.
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