Registration Dossier
Registration Dossier
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EC number: 812-713-1 | CAS number: 1219458-12-4
Endpoint summary
Administrative data
Description of key information
Additional information
Only one valid ready biodegradability test result foralkyl 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) |
REACH guidance R.16 default value |
15 days half-life |
Surface water (fresh) sediment |
REACH guidance R.16 default value |
30000 days half-life |
Marine water |
REACH guidance R.16 default value |
50 days half-life |
Marine water sediment |
REACH guidance R.16 default value |
30000 days half-life |
Soils |
REACH guidance R.16 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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