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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

96-hour LC50 = 39 mg/l

Key value for chemical safety assessment

LC50 for freshwater fish:
39 mg/L

Additional information

Data were not available for dichloro(diphenyl)silane (CAS 80-10-4). However due to its rapid rate of hydrolysis (half-life 10 seconds) it is more relevant to consider the hydrolysis product, diphenylsilanediol, as under conditions relevant to ecotoxicity testing, exposure will predominantly be to the hydrolysis product. Measured data were available for the diphenylsilanediol. A 96 hour LC50 of 39 mg/l was determined for Oncorhynchus mykiss based on a study conducted according to OECD guideline 203 (Wildlife international ltd, 2004a). This study is considered reliable and was selected as key. This is supported by QSAR calculated 96 hr LC50 of 31.6 mg/l.