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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to soil microorganisms

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Description of key information

Octanoic acid, zinc salt, basic:

Toxicity studies of octanoic acid, zinc salt, basic are not available. Toxicity of octanoic acid, zinc salt, basic (CAS 90480-58-3) to the respiration of micro-organisms was not observed in a guideline study with activated sludge (see above, Simon, 2012). Based on the lack of toxicity towards STP microorganisms, a similar low toxic potential may be assumed for soil microorganisms. Further, read-across to the assessment entities soluble zinc substances and octanoic acid is applied since zinc cations and octanoate anions determine its fate and toxicity in the environment.

Octanoic acid:

Fatty acids as contained in plant and animal tissue are a natural component of soil, represent a significant part of the nutritional demands of soil microorganisms, are rapidly degraded and non-bioaccumulative and are therefore assumed to be of low toxic potential towards soil microorganisms.

Zinc:

For microbial assays, in total 108 individual high quality NOEC/EC10s  represent 4 nitrogen transformation processes, 5 carbon transformation processes and 8 enzymatic processes and range from 17 mg Zn/kg dw for respiration  to 2623 mg Zn/kg dw for phosphatase.

Key value for chemical safety assessment

Additional information