Registration Dossier
Registration Dossier
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EC number: 943-282-9 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short-term toxicity to invertebrates: 48 hr EC50 124 mg/l (measured) (OECD 202).
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 124 mg/L
Additional information
A 48-hour EC50 value of 124 mg/L and NOEC of <60 mg/L have been determined for the effects of trimethylsilanol on mobility/mortality of Daphnia magna based on mean measured concentrations.
In view of the test media preparation method/exposure regime it is likely that the test organisms were exposed predominantly to the tested substance. However, at the higher concentrations tested (500 and 1000 mg/l) it is likely that hexamethyldisiloxane (HMDS) would be formed and would therefore contribute to the species present in the test system.
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