Registration Dossier
Registration Dossier
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Reaction mass of ammonium;potassium;sodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetate;magnesium, ammonium;potassium;sodium;2-[bis[2-[bis(carboxymethyl)amino]ethyl]amino]acetate;magnesium and ammonium;potassium;sodium;2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;magnesium
EC number: 902-533-2 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Information on the short-term toxicity to aquatic algae is available for two category members: metal chelates with copper and zinc. The result is in line with the expectations i.e. that the aquatic toxicity is the result of the free (metal) ion that is complexed and that this ion is much less bioavailable and thus less toxic to aquatic life when complexed with chelating agents. As expected, the order of aquatic toxicity of the metal chelates follows the order of toxicity of the metal ions: copper chelate is more toxic than zinc chelate. Therefore, it is reasonable to assume that the aquatic toxicity of magnesium chelate will be lower than that of zinc chelate.
The 72-h EC50 for algal growth (OECD 201) was determined to be 20.4 mg/L for the zinc chelate.
Considering that the aquatic toxicity is determined by the metal ion and that Mg is orders of magnitude less toxic than Zn, the substance is not considered toxic to algae.
Key value for chemical safety assessment
Additional information
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