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EC number: 233-520-3
CAS number: 10213-78-2
Many valid ready biodegradability test
results are available for primary fatty amine ethoxylates. The
biodegradation percentages reached at day 28 in Closed Bottle test,
Sturm tests and Manometric Respiration tests ranged from 60 to 76.
Moreover all aspects important for achieving a ready biodegradability
test result are fulfilled. 1) ultimate (complete) biodegradation was
demonstrated with a pure culture study and in a simulation test of a
biological treatment, 2) high rates of degradation were also
demonstrated with a pure culture and 3) occurrence of competent
micro-organisms in unacclimated ecosystems was shown by the ease with
which competent organisms were isolated. All primary fatty amine
ethoxylates with alkyl chains ranging van 10 to 18 unsaturated/saturated
should therefore be classified as readily biodegradable. Besides
to degradation by microorganisms also degradation in other biota like
fish was anticipated and recently also demonstrated by Geurts (2014)
under 6.5 Biotransformation and kinetics.
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