Registration Dossier
Registration Dossier
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EC number: 257-036-7 | CAS number: 51181-50-1
Endpoint summary
Administrative data
Description of key information
Additional information
No specific data for HEDTA-FeNa were available, therefore read-across was applied to cover all end-points by using data from structurally and mode of action wise very similar substances as justified in section 13 of IUCLID.
For the acute aquatic end-points, studies from iron-sodium complexed EDTA and DTPA were considered most relevant. For some chronic end-points other EDTA salts were used.
Selection of data resulted in (mg/L HEDTAFeNa)
LC50 fish: 96.2 mg/L
NOEC : >= 24.4 mg/L
EC50 invertebrates: 97 mg/L
NOEC: 26.3 mg/L
ErC50 algae: > 72.5 mg/L
NOEC: 58.5 mg/L
NOEC micro-org: >= 536.7 mg/L
The chelation of essential nutrients, especially relevant for algae studies, is not considered a relevant environmental hazard, due to the abundance of these nutrients in the aquatic environment.
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