Registration Dossier
Registration Dossier
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EC number: 291-793-4 | CAS number: 90480-58-3
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
Octanoic acid, zinc salt, basic:
Toxicity studies of octanoic acid, zinc salt, basic are not available. Thus, 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 living organisms, are rapidly degraded and non-bioaccumulative and therefore assumed to be of low toxic potential towards soil macroorganisms. QSAR estimations for toxicity of octanoic acid (CAS 124-07-2) to earthworms performed with ECOSAR v2.0 result in a 14-d LC50 of 1959 mg octanoic acid/L, exceeding the water solubility limit of octanoic acid und thus indicating a low potential for toxicity.
Zinc:
37 NOEC or EC10 values on soil macroorganisms exept arthropods are available covering 6 different worm species and vary from 35.7 mg Zn/kg for Enchytraeus albidus to 1634 mg Zn/kg dw for Lumbricus terrestris.
Key value for chemical safety assessment
Additional information
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