Registration Dossier
Registration Dossier
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EC number: 629-721-4 | CAS number: 308062-60-4
Endpoint summary
Administrative data
Description of key information
Additional information
5.2 Biodegradation
Three valid ready biodegradability test results are available for dialkylamines i.e. one for didodecylamine and two for dioctadecylamine. The biodegradation percentages reached at day 28 in Closed Bottle tests were 69 and 68 for didocylamine and dioctadecylamine, respectively.
The Table below summarizes half-lives derived through default values and a simulation study.
Table Summary of degradation rate constants in various (eco)systems based the ready biodegradability of dialkylamines.
(Eco)system |
Method |
|
Surface water (fresh) |
TGD default value |
15 days half-life |
Surface water (fresh) sediment |
TGD default value |
30000 days half-lifea |
Marine water |
TGD default value |
50 days half-life |
Marine water sediment |
TGD default value |
30000 days half-lifea |
Soils |
TGD default value |
30000 days half-lifea |
Degradation in sewage treatment plants |
Determined in bioreactors |
>99.9% removal primarily by biodegradation |
aHalf-life of the fraction dissolved in the water phase is expected to in the order of a few days.
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