Registration Dossier
Registration Dossier
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EC number: 700-802-7 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ready result of short chained triamine with OECD closed bottle test and results of tetraamine + additional literature info to support this result
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
Additional information
Oleyl tripropylene tetramine (C18tripropylene tetramine, composition of the Oleyl-alkyl chain is specified by Karleskind (1996)) is an alkyl polypropylene polyamine. Due to toxicity to microorganisms one valid ready biodegradability test result for alkyl polypropylene polyamines is available. Nevertheless all aspects important to show non persistence of Oleyl tripropylene tetramine (C18tripropylene tetramine) are available i.e. 1) ultimate (complete) biodegradation (demonstrated in (S)CAS tests and through read across) 2) high rates of degradation (through read across with Coco dipropylenetriamine (C18tripropylene tetramine)) and 3) occurrence of competent microorganisms in unacclimated ecosystems (through read across with Coco dipropylenetriamine (C18tripropylene tetramine) are fulfilled. Oleyl tripropylene tetramine (C18tripropylene tetramine is therefore at present viewed as not persistent.
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 |
30 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 |
>99.8% removal primarily by biodegradation |
a Determined in bioreactors >99.8% removal primarily by biodegradation a Half-life of the fraction dissolved in the water phase is expected to in the order of a few days.
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