Registration Dossier
Registration Dossier
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EC number: 291-793-4 | CAS number: 90480-58-3
Bioaccumulation: terrestrial
Administrative data
Link to relevant study record(s)
Description of key information
OCTANOIC ACID, ZINC SALT, BASIC:
Bioaccumulation of octanoic acid, zinc salt, basic in animals and biomagnification (i.e. accumulation and transfer through the food chain) is not considered relevant.
ZINC:
Zinc is an essential element which is actively regulated by organisms, so bioconcentration/bioaccumulation is not considered relevant.
Key value for chemical safety assessment
Additional information
OCTANOIC ACID, ZINC SALT, BASIC:
Based on read-across of zinc bioaccumulation data and the fact that octanoic acid, zinc salt, basic is readily biodegradable, bioaccumulation and biomagnification are not expected to be relevant for octanoic acid, zinc salt, basic. For a comprehensive overview of the bioaccumulation of zinc or the lack thereof, see the hazard assessment of "Zinc" within the framework of Regulation (EC) No 1907/2006 in Appendix 1 of the CSR and cited in excerpts below.
These conclusions are similar to the conclusions for a structural analogue from the EU RAR Zinc distearate (CAS-No.: 557-05-1 & 91051-01-3 EINECS-No.: 209-151-9 & 293-049-4) Part 1 - Environment (Final report R074_0805_env, May 2008 (http://echa.europa.eu/documents/10162/08799aec-42c5-44e0-9969-baa022c66db1):"Based on data on bioaccumulation of zinc in animals and on biomagnification (i.e. accumulation and transfer through the food chain), secondary poisoning is considered to be not relevant in the effect assessment of zinc..." "Distearate is not expected to bioaccumulate, knowing that fatty acids will degrade by the β oxidation pathway."
ZINC:
Bioaccumulation is not considered relevant for essential elements because of the general presence of homeostatic control mechanisms. the data from a field food chain transfer study indicate that bioconcentration of zinc is indeed very low. It is in all cases also lower in contaminated soil, as compared to control soil.
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