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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The standard OECD ready biodegradability pass level is 70 % removal of dissolved oxygen concentration (DOC). This pass level is reached with Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid within 10 days and thus also fulfills the criterion of ready biodegradability within the 10-day window as outlined in OECD guideline 301. In view of the results obtained in the valid DOC die-away tests with Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid, the substance should be considered as readily biodegradable.

The biodegradability of Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid under anaerobic conditions was hindered by the antibacterial effect of the test substance under the chosen test conditions. As the test results showed, there was no anaerobic biodegradation of Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid within 60 days. Due to these results the test item must be identified as non-biodegradable under anaerobic conditions because of its potentially toxic effects to bacteria, at least at the concentration recommended by the test guideline. Nevertheless, Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid must be assumed to quickly degrade aerobically in the STP.

In view of the verified aerobic ready biodegradability, further biodegradation tests (e.g. aerobic degradation in soil) are not considered necessary. However, an STP simulation test is available. The key simulation test corroborates the excellent degradability of Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid in sewage treatment plants, with a reported removal rate of 99.35% - 99.98% after 24 days.

 

The experimental determination of the degradation half-life (DT50) of Amines, N-C10-C16-alkyltrimethylenedi-, reaction products with chloroacetic acid in soil is not considered to be required in view of the ready biodegradability and overall limited direct release to soil. Instead, the half-life in soil may be determined by default allocation according to ECHA guidance document on environmental exposure calculation, chapter R.16 (table R.16-12; ECHA, 2016), based on the ready biodegradability and the soil adsorption characteristics (soil partition coefficient: Kpsoil > 1000, see Chapter Adsorption/desorption below). A soil half-life of 3000 days (degradation ratek= 0.000231) at 12 °C is therefore allocated by default.

 

Conclusion:

DT50(surface water) = 15 days

DT50(sediment) = 3000 days

DT50(soil) = 3000 days

DT50(STP) =0.693 hours