Registration Dossier
Registration Dossier
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EC number: 200-899-1 | CAS number: 75-76-3
Endpoint summary
Administrative data
Description of key information
Abiotic degradation
Tetramethylsilane is expected to be hydrolytically stable under environmentally-relevant conditions. The calculated half-life for reaction with hydroxyl radicals in air is 26.7 days.
Biotic degradation
A reliable ready biodegradation study is available for tetramethylsilane, which indicates no significant biodegradation in water. Biodegradation simulation tests in water, sediment or soil are technically not feasible due to the high volatility of the substance and its slight solubility in water. In addition, the high vapour pressure and the slight solubility in water indicate that exposure of the soil and aquatic compartments will be minimal.
Table 4.1.3. Degradation rates
Degradation rate in water: |
Hydrolytically stable. No significant biodegradation. |
Degradation rate in sediment: |
Not expected to biodegrade in sediment. |
Degradation rate in soil: |
Not expected to biodegrade in soil. |
Degradation rate in air: |
May undergo indirect phototransformation; calculated half-life for reaction with hydroxyl radicals in air is 26.7 days. |
Additional information
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