Registration Dossier
Registration Dossier
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EC number: 221-221-0 | CAS number: 3033-77-0
Endpoint summary
Administrative data
Description of key information
Additional information
According to existing biodegradation study results EPTAC is not readily biodegradable. There are two tests available: one regarding inherent biodegradability and the other on STP degradation simulation of EPTAC. In Zahn-Wellens test, 61% of the substance was
mineralized after 28 days and 94% after 42 days, showing moderate degradation in this inherent study. In a 135 day STP simulation test 15 ± 9.7% primary degradation was observed in 6 hours (sludge retention time 6 hours). These results indicate that competent degraders of EPTAC exist and they are not very rare. Anyway, available data shows that degradation rate of EPTAC in the environment is slow and the screening P criterion is fulfilled regarding biodegradation.
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