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EC number: 946-788-8
CAS number: -
EC50 (48 h, Daphnia magna) 48 mg/L
(geom. mean of measured conc.)
A static test was performed
according to the OECD Guideline 202 (2004) and the EU method C.2 of the
Regulation EC 440/2008. 5 concentrations were used ranging from
4.6 to 100 mg/L (nominal concentration). For each test concentration and
the blank control, 20 Daphnia were exposed to the test item for 48
hours. After 24 and 48 hours, the immobilised Daphnia were counted.
Potassium dichromate K2Cr2O7
was used as positive controlin a current reference study to assure
that the test conditions are reliable.
At the beginning and at the end of
the test, the content of the test item in the test solutions was
determined using photometer-determination. The concentrations determined
at the start of the test were between 45 and 81 % of the nominal
concentration. At the end of the test the determined concentrations were
between 94 and 108 % of the nominal concentration. Therefore, the
determination of the biological results was based on geometric mean of
All validity criteria were met.
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