Registration Dossier
Registration Dossier
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EC number: 239-311-3 | CAS number: 15267-95-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.2 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 2 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.02 mg/L
- Assessment factor:
- 5 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 2 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.72 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.072 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.026 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
(Chloromethyl)triethoxysilane (CAS No. 15267-95-5) is expected to hydrolyse rapidly in contact with water to (chloromethyl)silanetriol and ethanol. The silanol hydrolysis product is not readily biodegradable.
(Chloromethyl)triethoxysilane (CAS No. 15267-95-5) is not classified for the environment in the EU according to Regulation (EC) No 1272/2008 because measured data for the registered substance and structurally analogous substances triethoxy(methyl)silane (CAS No. 2031-67-6) indicate that both the parent substance and the silanol hydrolysis product are not harmful to the environment. Short term data are available and the lowest EC/LC50 is > 100 mg/l.
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