Registration Dossier
Registration Dossier
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EC number: 415-510-2 | CAS number: 145703-76-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
48h-EC50 for daphnia exposed to the substance is greater than an average concentration of 36 mg/l (i.e. filtrate of a nominal concentration of 100 mg/l).
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 36 mg/L
Additional information
According to the EU Method C.2 (acute toxicity for daphnia).
A nominal concentration of 100 mg/l is chosen for the test solution, which is supersaturated. After 48 hours, significant immobilisation is seen in daphnia exposed to this supersaturated solution (mean measured concentration 63 mg/l), but this effect is probably related to mechanical obstruction of the ability to swim, caused by the presence of substance deposits. After 48 -hour exposure of daphnia to filtrate solution (mean measured concentration of 36 mg/l), no immobilisation is observed. Therefore, EC50 value is above 36 mg/l.
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