Registration Dossier
Registration Dossier
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EC number: 607-234-8 | CAS number: 234446-82-3
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to aquatic invertebrates.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
To describe the short-term toxicity to aquatic invertebrates a study with a representative mixture of ‘EDTA metal complexes with cobalt, copper, iron, manganese and zinc’ (CAS 234446-82-3) is available [Toxikon Corporation, on behalf of Ciba, 1999]. The study was conducted according to OECD guideline 202 under non-GLP conditions with Daphnia magna as test species. Mortality of animals exposed to the test item ranged between 0 - 5%. The 48-hour LC50 value was incalculable because of the low mortality in the treatment concentrations. Therefore the NOEC and the LC50 is reported as >= 100 mg/L.
Further short-term toxicity studies with the water flea Daphnia magna are available for two single EDTA metal complexes of the UVCB (FeEDTANa, CAS 15708-41-5; CoEDTANa2, CAS 15137-09-4). These tests confirm the low toxicity of the EDTA metal complexes to aquatic invertebrates. In both tests the 48-hour EC50 value are >100 mg/L. The studies followed the test procedure described in OECD guideline 202, under GLP conditions and with analytical monitoring of the test item concentration. In the test with FeEDTANa (CAS 15708-41-5) [Eurofins-GAB, on behalf of Neudorff GmbH, 2007] effects were observed at concentrations > 30 mg/L test item, whereas in the test with CoEDTANa2 (CAS 15137-09-4) [BASF SE, 2012] no effects were observed up to the highest test concentration of 120 mg/L.
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