Registration Dossier
Registration Dossier
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EC number: 628-863-4 | CAS number: 1219458-14-6
Endpoint summary
Administrative data
Description of key information
Additional information
Only one valid ready biodegradability test result for alkyl dipropylene triamines is available because these substances are very toxic to micro-organisms. Nevertheless all aspects important for achieving a ready biodegradability test result i.e. 1) ultimate (complete) biodegradation (demonstrated in (S)CAS tests, through read across with triamine C12 -18 and intermediates) 2) high rates of degradation (through read across with triamine C12 -18) and 3) occurrence of competent micro-organisms in unacclimated ecosystems (through read across with triamine C12 -18) are fulfilled. All (alkyl dipropylene) triamines should therefore be classified as readily biodegradable (Table).
Table Typical members of the family of (alkyl dipropylene) triamines.
Chemical name | CAS |
triamine C16 -18 | 1219458 -14 -6 |
triamine C12 -18 | 1219458 -12 -4 |
triamine octodecenyl | 28872-01-7 |
branched triamine C12 | 2372-82-9 |
branched triamine C16 -18 | 1219826 -66-0 |
Table Summary of degradation rate constants in various (eco)systems based the ready biodegradability of (alkyl dipropylene) triamines.
(Eco)system | Method |
|
Surface water (fresh) | TGD default value | 15 days half-life |
Surface water (fresh) sediment | TGD default value | 30000 days half-life |
Marine water | TGD default value | 50 days half-life |
Marine water sediment | TGD default value | 30000 days half-life |
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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