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Environmental fate & pathways

Endpoint summary

Administrative data

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Additional information

Tallow tripropylenetetramine (composition of the oleyl-alkyl chain is specified by Karleskind (1996)) is an alkyl polypropylene polyamine. Only one valid ready biodegradability test result for alkyl polypropylenepolyamines is available because these substances are very toxic to microorganisms. Nevertheless all aspects important to show non persistence of oleyl tripropylenetetramine 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) and 3) occurrence of competent microorganisms in unacclimated ecosystems (through read across with coco dipropylenetriamine) are fulfilled. Tallowltripropylenetetrariamine is 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

3000 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

aHalf-life of the fraction dissolved in the water phase is expected to in the order of a few days.