Registration Dossier
Registration Dossier
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EC number: 938-679-9 | CAS number: 308062-29-5
Endpoint summary
Administrative data
Description of key information
Additional information
No biodegradation studies have been performed on C14 -16 AO. Data are available for category members C10 AO, C12 AO, C14 AO, C16 AO, C12-14 AO and C12-18 AO.
Based on these studies it is concluded that amine oxides, including C14 -16 AO are 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 AO was 1.32/day. The results of these studies are read across to C14-16 AO on the basis of the equivalence in chemical structure.
Based on these studies, performed under both aerobic and anaerobic conditions, it is concluded that amine oxides, including C14 -16 AO will be rapidly degraded in the environment, both in the aquatic environment and in soil and sediment.
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