Registration Dossier
Registration Dossier
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EC number: 257-036-7 | CAS number: 51181-50-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
96h LC50 > 100 mg/l for all species investigated. Rainbow trout study considered key, when expressed as HEDTA-FeNa, this would be > 96.2 mg/L
Key value for chemical safety assessment
Additional information
Data are available for three short-term studies on fish:
The assessment of the 96 h LC50 of FeNaEDTA in fish was done in an acute test on the rainbow trout Onchorhynchus mykiss. No mortalities of fish occurred up to a concentration of 100 mg/L within a period of 96 h. The mean measured concentration of the test item was between 80 and 120% of the nominal through the entire test period and the toxicological endpoints were evaluated using nominal concentration of the test item. The LC50 (96h) was determined to be > 100 mg/L with a probability of 99.9%. The NOEC (96 h) was determined to be 100 mg/L.
The acute toxicity (96h-LC50) of sodium ferric EDTA towards Pimephales promelas was investigated in a multispecies test. The toxicity value was found to be >100 mg/l.
A third study with DTPA-FeNaH confirmed low toxicity to zebra fish (Danio rerio). The 96h LC50 value was > 100 mg/L.
All studies were found to be of good quality and were comparable to or equivalent to guideline studies.
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