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EC number: 943-080-0
CAS number: -
EC50 48h (freshwater OECD 202 study on Daphnia Magna): >100 mg/LNOEC 48h (freshwater OECD 202 study on Daphnia Magna): >100 mg/L
One valid experiment was performed.
20 Daphnia were exposed to the test item for 48 hours in a static
Due to the low solubility of the test item, the measured DOC
concentrations in the treatment and in the control were in a similar
very low range.
Due to the marginal difference of the DOC concentration in the
treatment and the control no test item concentration was calculated
based on the organic carbon content of the test item and measured DOC
Therefore, the determination of the results was based on the
This is in agreement with the OECD guidance document no. 23, where
is stated: “For tests with chemicals that cannot be quantified by
analytical methods, the effect concentration can be expressed based on
the nominal concentrations (loading rates).”
Potassium dichromate K2Cr2O7(CAS
No. 7778-50-9) was used as positive controlin a current reference
study.The 24h-EC50 value was determined as 1.6 mg/L, lying within the
demanded range of 0.6 – 1.7 mg/L.
No observations were made which might cause doubts concerning the
validity of the study outcome. All validity criteria were met.
The result of the test is considered valid.
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