Registration Dossier
Registration Dossier
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EC number: 283-985-1 | CAS number: 84776-57-8
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Aquatic toxicity studies with substance Fatty acids, C18-24, zinc salts are not available. In the assessment of substance Fatty acids, C18-24, zinc salts, read-across to the assessment entities soluble zinc substances and fatty acids, C18-24 is conservatively applied since the ions of substance Fatty acids, C18-24, zinc salts determine its fate and toxicity in the environment.
Please refer to the section for the respective assessment entity for data on the moieties. In brief:
ZINC:
The aquatic hazard assessment is based on the most toxic moiety, i.e. the zinc cation, with key data:
Freshwater:
Data on 13 species available. Species NOECs range between 0.037 and 0.400 mg Zn/l (dissolved concentrations)
Marine:
Data on 26 species available. Species NOECs range between 0.0056 and 0.9 mg Zn/l (dissolved concentrations)
FATTY ACIDS, C18-24:
The ecotoxic potential of the fatty acid chain, i.e. fatty acids, C18-24, is assumed to be negligible. Fatty acids are generally not considered to represent a risk to the environment, which is reflected in their exclusion from REACH registration requirements (c.f. REACH Annex V (Regulation (EC) No 987/2008)).
Key value for chemical safety assessment
Additional information
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