Registration Dossier
Registration Dossier
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EC number: 943-282-9 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable, but failing 10-day window
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
Additional information
65% biodegradation in 28 days was determined in a reliable study conducted with trimethyl(octadecyloxy)silane according to an appropriate test protocol. The substance is therefore readily biodegradable, but failing the 10-day window. No lag phase was observed and 10% degradation was reached after 3 days. This suggests rapid hydrolysis of the alkoxysilane bond to form the hydrolysis products trimethylsilanol and octadecanol. The biodegradation observed can be attributed to degradation of the octadecanol hydrolysis product.
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