Registration Dossier
Registration Dossier
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EC number: 222-059-3 | CAS number: 3332-27-2
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 C14 AO. The results of these studies 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 are readily biodegradable.
A number of simulation tests have been performed with C12/C14 AO or C12 AO alone. The findings in these studies are considered to be relevant to C14 AO due to the test material either containing a significant proportion of C14 AO or being a structural analogue with very similar chain length.
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 AO and C14 AO were 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.
Based on these studies, performed under both aerobic and anaerobic conditions, it is concluded that amine oxides, including C14 AO will be rapidly degraded in the environment, both in the aquatic environment and in soil and sediment.
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