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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Fatty acids, C8-10, zinc salts:

Toxicity studies of fatty acids, C8-10, zinc salts are not available. In the assessment of environmental toxicity of fatty acids, C8-10, zinc salts, read-across to the assessment entities zinc and C8 -10 fatty acids is applied since zinc cations and fatty acid anions determine its fate and toxicity in the environment. Please refer to the respective assessment entity for further details.


C8-10 fatty acids:

In a reliable, GLP-conform chronic toxicity test with Daphnia magna according to OECD 211, a 21 d NOEC of 0.2 mg/L was determined for the effect of decanoic acid (C10) on the reproduction of Daphnia magna.


Freshwater: Data on 13 species available. Species NOECs range between 0.014 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)

Respective NOEC/EC10 values were applied in the species sensitivity distribution.

Key value for chemical safety assessment

Additional information