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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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A 48-hour EC50 value of >1.6 mg/L and NOEC of ≥1.6 mg/L have been determined for the effects of the test substance on mobility of Daphnia magna. A concentration of 1.6 mg/L corresponds to the approximate water solubility of the substance. The results of this test were selected in preference to those of another test because they were obtained in a very recent study that was fully compliant with guideline requirements.
A 48-hour EC50 of >119 mg/L has been determined for the effects of the hydrolysis product (dimethylsilanediol; CAS No. 1066-40-6) on mobility of Daphnia magna. This study is considered reliable without restrictions and, therefore, may be used to conclude that dimethylsilanediol is not acutely toxic to aquatic invertebrates.

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