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Short-term toxicity to aquatic invertebrates

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Description of key information

With high probability acutely not harmful to aquatic invertebrates. No toxic effects occur within the range of solubility

Key value for chemical safety assessment

Additional information

Two static limits test were performed according to the OECD guideline 202 using Daphnia magna. Due to the low water solubility of the test substance a dispersion (96 h saturation) with the loading rate of 100 mg/L was tested (RCC Ltd. 2008a). The undiluted filtrate without solvents or emulsifier was used. No effects within the range of solubility could be observed. The NOEC/EC0 (48 h) was determined to be at least the loading rate of 100 mg/L. The EC50 and EC100 (48 h) were clearly above the loading rate of 100 mg/L.

These findings are supported by a second limit test using a supersaturated solution of 100 mg/L dispersed with Cremophor RH 40 (unfiltered and filtered) (RCC NOTOX 1993b). The 48-hour EC50 was determined to be higher than the loading rate of 100 mg/L. The EC0 and EC100 are both higher than 100 mg/L. No mortality or visible abnormalities were observed during the test period of 48 hours.