Registration Dossier
Registration Dossier
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EC number: 209-599-5 | CAS number: 587-26-8
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
No effects are expected up to the limit of water solubiity.
Key value for chemical safety assessment
Additional information
The acute toxicity of Lanthanum carbonate (containing water) to Daphnia magna was studied according to OECD 202 (Seyfried 2007). An undiluted filtrate of a supersaturated dispersion with the loading rate of 146 mg/L was tested for 48 h, corresponding to a loading rate of 100 mg/L of Lanthanum carbonate, anhydrous. The arithmetic mean measured concentration of Lanthanum carbonate, anhydrous in the test medium was stated as 160 µg/L. Mortality/immobilization were observed daily. In the control and at the loading rate of 100 mg/L, no immobilized test organisms were observed during the test period of 48 h. Therefore, the LC50(48h) was given as greater than 100 mg/L (nominal loading rate).
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