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EC number: 203-149-1
CAS number: 103-83-3
The acute toxicity of benzyldimethylamine to aquatic invertebrates (Daphnia magna) was tested according to EU method C.2 'Acute Toxicity for Daphnia' (2008). No toxic effects against Daphnia magna were observed during 48 hours exposure at a limit test concentration of 100 mg/L (Currenta, 2010).
A study was performed to assess the acute
toxicity of benzyldimethylamine to Daphnia magna STRAUS under static
conditions in a closed bottle system. The study was conducted in
accordance with the Council Regulation (EC) No 440/2008, Method C.2
‘Acute toxicity for Daphnia’ (2008) which is equivalent to OECD
Guideline for Testing of Chemicals No. 202 'Daphnia sp., Acute
Immobilisation Test' (adopted April 13, 2004). The Daphnia were exposed
to a range of concentrations, nominally 6.25, 12.5, 25, 50 and 100 mg/L
of benzyldimethylamine dissolved in dilution water.Observations were
made on the swimming ability and the immobilisation rate, respectively,
after 24 and 48 hours of exposure. The following values were determined:
EC 50 (24,48 h) > 100 mg/L
The results are expressed in terms of
nominal concentrations (at 24 h and 48 h). Effective concentrations
ranged from 97.6 – 99.5% of nominal values at 0 hours, and from 94.9 –
95.9% of nominal values at 48 hours, respectively. The hardness of the
dilution water used was 14.7°dH (= 262.4 mg/L CaCO3).
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