Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

No reliable test data are available for trimethylsilane (CAS 993-07-7). Reliable acute aquatic toxicity tests results are available for the silanol reaction product of the test substance, trimethylsilanol (CAS 1066-40-6), for aquatic invertebrates (Daphnia magna) and algae (Pseudokirchneriella subcapitata). EC50 values for the two organisms were 124 mg/l (based on mortality and immobilisation) and >750 mg/l (based on growth rate) respectively. A NOEC of 50 mg/l was determined in the algal test. Hazard assessment is based on trimethylsilanol. For further discussion refer to Section 6, Endpoint summary: Ecotoxicological information.