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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

No ready biodegradability test results are available for Amines C36-alkylenedi- . Ready biodegradability test are developed for water soluble, non toxic substances. Amines C36-alkylenedi- is a water-insoluble toxic substance. With acclimatized sludge biodegradation percentages of >60 were found twice. The results were not reproducible which is also attributed to toxicity and poor-water solubility of amines C36-alkylenedi- . The tests showing >60% biodegradation do prove that amines C36-alkylenedi- is inherently and ultimately biodegradable. A CAS test simulating the behavior amines C36-alkylenedi- in biological treatment plants did unambiguously prove with 74.4% removal via biodegradation that amines C36-alkylenedi- is biodegradable.

Table Summary of degradation rate constants of the parent compound, amines C36-alkylenedi- hydrogenatedin various (eco)systems.




Surface water (fresh)

TGD default value

150 days half-life

Surface water (fresh) sediment

TGD default value

3000 days half-life

Marine water

TGD default value

1500 days half-life

Marine water sediment

TGD default value

30000 days half-life


TGD default value

30000 days half-lifea

Degradation in sewage treatment plants

Determined in bioreactors

99.27% removal primarily by biodegradation

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