Registration Dossier
Registration Dossier
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EC number: 824-774-1 | CAS number: 148124-40-7
Toxicity to other aquatic organisms
Administrative data
Link to relevant study record(s)
Description of key information
The ecotoxicity of EDTA-FeK/ EDTA-FeNa are considered to be similar to the ecotoxicity of EDTA-Fe(OH)K2 as these substances will be tested in very diluted form in buffered matrices and under these conditions no significant effects of the additional OH or sodium instead of potassium are expected. The ecotoxicity test results as observed for EDTA-FeK/Na will therefore be read across to EDTA-Fe(OH)K2. As a worst-case no molecular weight correction is applied (14% difference).
The acute toxicity (96h-LC50) of EDTA-FeNa towards a range of invertebrate/vertebrate species was investigated in a multispecies test according to EPA-600/3 -75 -009 and ASTM method E729 -80 (Ewell et al 1986). The following species were tested: Asellus intermedius (pillbug), Daphnia magna (water flea), Dugesia tigrina (flatworm), Gammarus fasciatus (sideswimmer), Helisoma trivolvis (snail), Lumbriculus variegatus (segmented worm) and Pimiphales promelas (fathead minnow).
The 96h-LC50 was found to be >100 mg/L for all test species except for Daphnia magna, where it was 32 mg/L (see separate entry IUCLID 6.1.3).
Additional information
The acute toxicity (96h-LC50) of EDTA-FeNa towards a range of invertebrate/ vertebrate species was investigated in a multispecies test according to EPA-600/3 -75 -009 and ASTM method E729 -80 (Ewell et al 1986). The following species were tested: Asellus intermedius (pillbug), Daphnia magna (water flea), Dugesia tigrina (flatworm), Gammarus fasciatus (sideswimmer), Helisoma trivolvis (snail), Lumbriculus variegatus (segmented worm) and Pimiphales promelas (fathead minnow).
The 96h-LC50 was found to be >100 mg/L for all test species except for Daphnia magna, where it was 32 mg/L (see separate entry IUCLID 6.1.3).
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