Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 270-451-8 | CAS number: 68440-34-6
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
FATTY ACIDS, C14 -18 AND C16 -18 -UNSATD., ZINC SALTS:
As toxicity data are not available for Fatty acids, C14-C18 and C16-18-unsatd., zinc salts, read-across to insoluble/ slightly soluble zinc substances is made, and the PNEC soil as derived in the Chemical Safety Assessment of "Zinc" within the framework of Regulation (EC) No 1907/2006 (see Appendix 1) is carried over to Fatty acids, C16-18, zinc salts.
ZINC:
NOEC and EC10 values are available for 18 different species. TheNOEC/EC10 values vary between 32 mg Zn/kgdw for Trifolium pratense andVicia sativa to 5855 mg Zn/kg dw for Triticum aestivum .
Key value for chemical safety assessment
Additional information
As terrestrial toxicity data are not available forfor Fatty acids, tallow, zinc salts or for the read-across substance Fatty acids, C16 - 18, zinc salts, read-across to inorganic zinc substances is made as a worst case approachin accordance to Regulation (EC) No 1907/2006 Annex XI, 1.5. As in the EU Risk Assessment Report (RAR) for zinc stearate, it is assumed that upon dissolutionFatty acids, tallow, zinc saltsis changed in part to ionic zinc and that only ionic zinc is determining biological activities. The data available for zinc is summarized below. For a comprehensive overview of the ecotoxicity of zinc, see the hazard assessment of "Zinc" within the framework of Regulation (EC) No 1907/2006.
ZINC:
For plants, 45 individual high quality NOECs/EC10 values are selected for PNEC derivation, representing 18 different species. NOEC and EC10 values vary between 32 mg Zn/kg dw for Trifolium pratense and Vicia sativa (Van der Hoeven and Henzen, 1994) to 5855 mg Zn/kg dw for Triticum aestivum (Warne et al., 2008a).
All toxicity data are expressed as added Zn concentration in soil, based on either the nominal dose added or on measured, background corrected soil Zn concentrations.
References:
Van der Hoeven, N. and L. Henzen (1994c).De effecten van zink op de groei van de plantensoort Trifolium pratense (onder laboratorium- en veldomstandigheden) op grond uit Panheel.Testing laboratory: Netherlands Organisation for Applied Scientific Research (TNO), The Netherlands. Report no.: MW-R94/304.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
