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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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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.