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EC number: 203-904-5
CAS number: 111-75-1
DIN 38 412, part 15_Leuciscus idus: LC50(96h) > 100 mg/L
The acute toxicity to fish of the test
substance was tested according to German Industrial Standards DIN 38
412, part 15 in a static freshwater test with Golden orfe (Leuciscus
idus) as test organisms (BASF AG, 1989). Based on a range-finding
test, the nominal test concentrations in the definitive test were: 4.64,
10.0, 21.5, 46.4 and 100.0 mg/L. Furthermore, a control and a reference
substance (Chloroacetamide) were included. 10 organisms were introduced
to each vessel, thus a biomass loading rate of 3.5 g/L was reported. A
16 h dark and 8 h light cycle was introduced. Physico-chemical
parameters (i.e. temperature, dissolved oxygen and pH) were recorded
after 1, 24, 48, 72, and 96 h. Tumbling was observed at the test
concentration of 100 mg/L after 4 h of exposure. No mortality occurred,
thus the LC50(96h) is reported as > 100 mg/L and Butylaminoethanol can
be considered as non-toxic to freshwater fish.
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