Registration Dossier
Registration Dossier
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EC number: 220-020-5 | CAS number: 2605-79-0
Endpoint summary
Administrative data
Description of key information
Additional information
Screening level data, in which the substance was tested according to OECD 301B are available for C10 AO. The results of this study show that the substance is ready biodegradable. Similar results were obtained in studies performed using C12-14 AO. Based on these studies it is concluded that amine oxides, including C10 AO, are readily biodegradable.
No simulation tests are available for C10 AO, however a number of studies have been performed with C12/14 AO or C12 AO alone. The findings in these studies are considered to be relevant to C10 AO as the substances have similar physico-chemical properties and are both readily biodegradable.
In a continuous activated sludge (CAS) test performed using C12 -14 AO, removal of parent amine oxide was > 99.8 % in both units. In a monitoring study, the influent and effluent concentrations of C12 and C14 amine oxide was measured in six municipal sewage treatment plants. The BOD removal was 96-98 %. On the basis of these studies, a removal rate in STP of 98 % is proposed for modelling.
In a river water die away study performed using C12 -14 AO the half-life of amine oxide was determined to be 3.2 days. In a biodegradation test performed using anaerobic digester sludge the rate constant for mineralization of C12 -14 amine oxide was 1.32/day.
Based on these studies, performed under both aerobic and anaerobic conditions, it is concluded that amine oxides, including C10 AO will be rapidly degraded in the environment, both in the aquatic environment and in soil and sediment.
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