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EC number: 629-732-4
CAS number: 1224966-13-5
One long term toxicity test with daphnia has been performed. The 21 d EC10 for reproduction is 320 µg/L based on the nomimal test substance concentration. Corrected for active ingredient which is 96% the EC10 is reduced to 307.2 µg/L..
One long term toxicity test with daphnia has
been performed. The 21 d EC10 for reproduction is 320 µg/L based on the
nomimal test substance concentration. Corrected for active ingredient
which is 96% the EC10 is reduced to 307.2 µg/L. The test was performed
with river water as it is intended to be used in an evaluation of the
environmental risks based on the Bulk approach where it is essential to
show that the organisms were fully exposed to the nominal test
concentration. During the test a decrease of the concentration is
observed of about 30%. Imidazolines are susceptible to hydrolysis and
the decrease observed could therefore be assigned to either hydrolysis
or sorption or even both processes. Imidazolines will however only
hydrolyze to an amidoamine which is relatively resistant to hydrolysis
under ambient conditions. As this hydrolysis will also occur under
environmental conditions and amidoamines have a comparable ecotoxicity
as the imidazolines the Nominal concentration based on active ingredient
is considered as the concentration to be used for the dose effect
assesment as no significant adsorption to glassware was observed and the
organisms were thus fully exposed the the nominal concentration based on
active ingredient. Initially to the imidazoline which have gradually
changed into an amidoamine during the test. It is considered realistic
to relate the observed effects to the nominal values based on active
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