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EC number: 238-778-0
CAS number: 14726-36-4
Information on the hydrolysis of zinc bis(dibenzyldithiocarbamate) is
waived as the substance is insoluble in water. No
tests are available for photodegradation in air and photolysis in water.
Zinc bis(dibenzyldithiocarbamate) is not readily biodegradable under
aerobic conditions (Currenta
GmbH & Co., 2010). With the
available information on the substance, the chemical safety assessment
indicates that the risks in water, sediment and soil compartments are
controlled and no further information will have to be provided. However,
to conclude on the PBT properties of the substance a simulation
testing on ultimate degradation in surface water is planned. The
definitive study is ongoing and performed according to OECD TG 309.
Besides studying the rate of biodegradation, the degradated products
will be identified as well in this definitive study. The final
report is expected to be available in Q3/Q4 2021. An update of the
dossier containing the final study results will be submitted when all
ongoing/planned studies have been finalized (expected in Q1 2022).
The simulation testings of biodegradation in water:
sediment and soil are waived at this stage.
- Bioaccumulation: The performance of an
experimental study for bioaccumulation endpoint or not depends on the
partition coefficent and the biodegradation properties of the substance.
If logKow ≥ 3 or the substance is persistent in surface water, sediment
or soil, then an experimental study on bioaccumulation will be carried
out. At this moment, both partition coefficient and the biodegradation
studies are ongoing. The study on bioaccumulation is waived at this
stage until the results of the ongoing studies are available.
- Adsorption/desorption: The
calculated Koc value is 2.6E+09 L/kg (QSAR). A maximum Koc value
of 1.0E+06 L/kg is used in the assessment.
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.
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