Registration Dossier
Registration Dossier
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EC number: 219-637-2 | CAS number: 2487-90-3
Endpoint summary
Administrative data
Description of key information
Additional information
Reliable acute toxicity tests results are available for freshwater fish (Oncorhynchus mykiss), invertebrates (Daphnia magna) and algae (Pseudokirchneriella subcapitata).
The hydrolysis rate of trimethoxysilane (CAS 2487-90-3) (half-lives of =0.2 minutes at pH 4 and pH 9, =0.3 minutes at pH 7 and 2°C) and test media preparation methods (overnight mixing of test solutions and static regime) mean it is likely that the test organisms in each test were exposed primarily to the hydrolysis products, monosilicic acid and methanol.
The relevant short-term values are:
Fish: LC50 (96 h): >100 mg/L (nominal) (Springborn Smithers, 2004a).
Invertebrates: Daphnia: EC50 (48 h): >100 mg/L (nominal) (Springborn Smithers, 2004b).
Algae: ErC50 (72 h): >100 mg/L and NOEC <6.3 mg/L (nominal) (Springborn Smithers, 2004c).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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