Registration Dossier
Registration Dossier
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EC number: 257-446-6 | CAS number: 51818-55-4
Endpoint summary
Administrative data
Description of key information
The result of the short-term toxicity test to aquatic invertebrates show no adverse effects on the mobility of Daphnia magna up to the solubility limit of the test substance neodecanoic acid, iron salt (Woods, 2017). Similar, the EC50 and NOEC values (72 -hr, Pseudokirchneriella subcapitata) for algal growth inhibition by neodecanoic acid, iron salt are > 1.18 mg/L and, ≥ 1.18 mg/L, respectively, i.e. more than the solubility limit (Woods, 2017).
The potential toxicity of neodecanoic acid, iron salt to fish is composed of contributions by both, neodecanoic acid and the ferrous ions. The 96–hr-acute toxicity of neodecanoic acid to fish was studied. No adverse effects on the mortality of Oncorhynchus mykiss could be observed up to the solubility limit of the test substance (Eadsforth et al., 1998). The toxicity of the soluble iron (III) salts to fish was determined in a series of 96-hr tests, resulting in a lowest LC50 (96-hr, Oryzias latipes) of 46.6 mg FeCl2/L reported by Bae et al. (2005), which can be attributed to a pH effect. Iron as such is considered not to exert any systemic effects on fish in the tested concentration range of up to 100 mg/L in a neutralized solution.
Therefore, aquatic short-term toxicity is considered as not likely to occur. In conclusion, the target substance neodecanoic acid, iron salt is not considered to be toxic to aquatic life.
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