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EC number: 923-418-3 | CAS number: -
This study was performed in order to evaluate the toxic potential of MONTANOV 14 towards freshwater shrimp, using species Daphnia magna. D magna STRAUSS, which belongs to the family of crustacea, was chosen in the guideline as a typical part of zoo-plancton.
As the solubility lies below 100mg/L, the water-accomodated fraction was prepared for the test. t his was done by weighing the nominal load, adding the corresponding amount of dilution water and shaking vigorously for 24 hours; the resulting solution was filtrated through 0.45 um filters.
In the main study, 3 concentrations of the test item was used, spaces by factor 10, the highesty being 100 mg/L were used. 20 Daphnia were exposed to the test item for 48 hours, immobilised Daphnia were counted.
24h EC50 of K2Cr2O7 was determined at 1.4mg/L, lying with demanded range of 0.6 -2.1mg/L.
The following results were obtained for the test item:
24h NOEC= 100mg/L
48h NOEC= 100mg/L
24h EC50i> 100mg/L
48h EC50> 100 mg/L
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