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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The substance was not acutely toxic to Daphnia magna at the limit of its water solubility in this study.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
100 mg/L

Additional information

A static freshwater toxicity test was conducted (to OECD Guideline 202) to determine the acute toxicity of the water available fraction of the test substance to the water flea, Daphnia magna. A limit test was initiated with one concentration of test substance (100 mg wm/l loading rate, the maximum loading rate for this test substance)., which was applied to the dilution water and stirred to achieve a stable water available fraction (WAF). The criterion for effect was death or immobilization (i.e., no movement except for minor activity of appendages).

The 48 hour EC50 and NOEC were >100 mg wm/L (expressed as loading rate) based on the lack of mortality and sublethal effects observed at this test concentration. The 48-hour EC50 was incalculable because of the absence of mortality during the 48-hour test.