Registration Dossier
Registration Dossier
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EC number: 203-919-7 | CAS number: 111-90-0
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Daphnia magna (48hr EC50, static method): 4005, 1982
Orconectes immunis (96hr EC50, freshwater crayfish, flow through method): 34700mg/l
Arbacia punctulata (48hr, EC50, sea urchin, flow through method): 7611mg/l
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1 982 mg/L
Marine water invertebrates
Marine water invertebrates
- Effect concentration:
- 7 611 mg/L
Additional information
There is sufficient information available to characterise the toxicity to aquatic invertebrates. Two studies are available that assessed the toxicity to daphnia magna, the preferred species for testing. The lowest value obtained was an EC50 of 1982mg/l and this is used as the key parameter. In another fresh water crustacea (Calico crayfish) using a flow through method, an EC50 of 34700mg/l was established. A salt water species (purple spined sea urchin) was also examined using a flow through method and an EC50 of 7611mg/l obtained. The data clearly indicates that this substance is practically non toxic to invertebrates.
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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