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EC number: 272-729-4
CAS number: 68910-05-4
A complex residuum from the fractionation of the reaction products of 2-aminoethanol with ammonia to remove piperazine. It may contain such compounds as 2-[(2-aminoethyl)amino]ethanol, (aminoethyl)piperazine, (hydroxyethyl)piperazine.
Acute tests on all three trophic levels were performed to examine
the aquatic toxicity of the multiconstituent substance. Algae turned out
to be the most sensitive species revealing an ErC50 (72h) >0.5 mg/L.
Fish and daphnia were less sensitive than algae providing a LC50 (96h)
>1000 mg/L and an EC50 (48h) of 55.59 mg/L, respectively. Thus, the
mixture is considered acutely very toxic for aquatic organisms.
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