Registration Dossier
Registration Dossier
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EC number: 235-043-6 | CAS number: 12060-58-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
About Samarium oxide two studies were available, one about the analogue substance Cerium carbonate, here no effects on toxicity to aquatic algae up to the limit of water solubility were observed.
The other studay about samsarium oxide itself showed that significant inhibition of algal growth could be only observed at the highest concentrated treatment containing 100 mg/L (nominal concentration). Below this concentration no effects were observed.
Significant inhibition of algal growth could be only observed at the highest concentrated treatment containing 100 mg/L (nominal concentration).
Below this concentration no effects were observed.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 94 µg/L
- EC10 or NOEC for freshwater algae:
- 19 µg/L
Additional information
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