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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Sediment toxicity

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Description of key information

Fatty acids, C14-18 and C16-18-unsatd., zinc salts:

Sediment toxicity studies of Fatty acids, C14-18 and C16-18-unsatd., zinc salts are not available. Thus, read-across to the assessment entities soluble zinc substances and C14-18 fatty acids is applied, since zinc cations and fatty acid anions determine its fate and toxicity in the environment. Since C14-18-satd. and C16-18-unsatd. fatty acids have a low potential for sediment toxicity, the sediment hazard assessment of Fatty acids, C14-18 and C16-18-unsatd., zinc salt is based on zinc ions. Please refer to the endpoint summary of the respective assessment entity for further details.

 

Fatty acid anions (C14-18-satd. and C16-18-unsatd.):

Fatty acids as contained in plant and animal tissue are a natural component of sediments, represent a significant part of the nutritional demands of living organisms, are rapidly degraded and non-bioaccumulative and have a low toxic potential in sediment.

 

Zinc:

Reliable data are available for 7 freshwater species with species mean NOECs (added - after correction for background) ranging from 146 to 1101 mg/kg dw. In addition, two field studies are available for freshwater sediments resulting in an overall NOECecosystem of 725 mg/kg d.w. added zinc and minor effects on species richness and macroinvertebrate density at 119 mg/kg d.w. added zinc.

Chronic toxicity data are available for 2 marine species: the amphipod Melita plumulosa with a NOEC (added) of 490 mg/kg dw for reproduction and the mangrove Avicennia marina with a NOEC (added) of 207.1 mg/kg dw for emergence.

Key value for chemical safety assessment

Additional information