Registration Dossier
Registration Dossier
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EC number: 238-372-3 | CAS number: 14402-88-1
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Two reliable 21 d chronic toxicity studies for daphnids are available, both with results in the same order of magnitude. Key value is the value used in the EU RAR 2004 from BASF as representative for the group of EDTA salts. This 21d NOEC = 25 mg/L for the test substance (ethylenediaminetetraacetic acid, disodium salt). Recalculation towards EDTA-MgNa2 via MW ratio results in 358.5/336.21 x 25 = 26.6 mg/L
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 26.6 mg/L
Additional information
Two long term studies were considered, from which the study with EDTA-Na2H2 was determined to be key. This is the same study from the EU RAR (2004), the other study with EDTA-MnNa2 showing a higher EC10 value confirms the toxicity to daphnids. To expres the endpoint as EDTA-MgNa2 a recalculation was performed.
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