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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Ecotoxicological information

Endpoint summary

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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 analogue substances and/or 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.

Based on data of the analog substances fatty acid(s) C12, C18OH and C16-18 zinc salt(s), substance Fatty acids, C18-24, zinc salts (a zinc salt of a longer-chained fatty acid moiety (C18-24) with a lower zinc content and solubility) is expected to have a low potential for toxicity to aquatic microorganisms, algae, invertebrates and fish.

Reliable data available for analogue substances, soluble zinc substances and fatty acids indicate that the moiety of ecotoxicological concern are zinc cations. Aquatic toxicity data of fatty acids point to a low toxic potential to aquatic organisms. 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)).

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