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EC number: 619-437-9
CAS number: 99474-22-3
Nominal Concentration in mg/L
pH and O2
O2-Concentration in mg/L
The measured concentration at the beginning of the test was 2 %
of the nominal concentration and after 48 hours the measured
concentration was 2 % of the nominal concentration. Therefore, the
determination of the biological results was based on the geometric
mean of the measured concentration.
Since measured concentrations lay in a close range to the blank
control, nominal concentrations are also given in the result tables.
The measured concentrations for treatment and blank control are
given in the following table:
NominalConcentration Test Item
TC t = 0 h
TC t = 48 h
IC t = 0 h
IC t = 48 h
LOQ (Limit of quantification) TC = 5.43 mg/L
LOQ (Limit of quantification) IC = 2.03 mg/L
DOC (TC-IC) t = 0 h
Measured DOC (TC-IC) t =48 h
DOC minus blank controlt = 0 h
DOC minus blank control t = 48 h
Test Item t = 0 h
Test Item t = 48 h
% of Nominal concentrationt = 0 h
% of Nominal concentrationt = 48 h
Nominal Concentration Test Item
Geometric Mean of measured concentrations
No toxicity occurred no statistical evaluation was conducted.
> 2.1 mg/L
> 100 mg/L
• Immobilisation in the controls may not exceed 10 %.
Immobilisation in the controls was 0 %.
• The concentration of dissolved oxygen at the end of
the test must be at least 3 mg/L. The lowest concentration of
dissolved oxygen at the end of the test was 8.2 mg/L.
A GLP-study was perform to asses the short term toxicity of the
test item againstDaphnia magnaSTRAUS according to OECD 202
resp. EU C.2. The study was performed as a limit test using one
concentration at 100 mg/L. For the test concentration and the blank
control, 20 daphnia were exposed to the test item for 48 hours in a
static test system. After 24 and 48 hours, the immobilized daphnia
were counted. At the end of the test no toxicity was observed in the
treatment and also none of the animals was immobilized in the blank
The following results were determined for the test item
(species: Daphnia magna):
NOEC ≥ 100 mg/L;
EC50 > 100 mg/L.
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