Registration Dossier
Registration Dossier
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EC number: 293-049-4 | CAS number: 91051-01-3
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
Fatty acids, C16-18, zinc salts:
Reliable studies of the toxicity of fatty acids, C16-18, zinc salts to terrestrial plants are not available. Thus, read-across to the assessment entities soluble zinc substances and C16-18 fatty acids is applied since zinc cations and fatty acid anions (C16-18) determine fate and toxicity in the environment. Since C16 -18 fatty acids have a low potential for ecotoxicity, the hazard assessment of fatty acids, C16-18, zinc salt is based on zinc ions. Please refer to the endpoint summary of the respective assessment entity for further details.
Fatty acid anions (C16-18):
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 have a low toxic potential for terrestrial plants. Based on the absence of a hazard potential in the aquatic compartment, a similar low potential is also assumed for terrestrial plants. This is confirmed in the risk assessment of C7 to C18 fatty acids by EFSA (2013) since based on a vegetation/vigour test, the risk to non-target plants is low.
ZINC:
NOEC and EC10 values are available for 18 different species and range from 32 mg Zn/kgdw for Trifolium pratense and Vicia sativa to 5855 mg Zn/kg dw for Triticum aestivum.
Key value for chemical safety assessment
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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