Registration Dossier
Registration Dossier
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EC number: 457-670-6 | CAS number: 157859-20-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.001 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
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:
- 0.002 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.002 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Additional information
The available ecotoxicological data are based on triisopropylsilanol, one of the hydrolytic products of triisopropylsilyl acrylate. Therefore, the PNECs were derived based on the information of triisopropylsilanol.
Due to the lack of relevant experimental data for the calculations of PNEC in sediment and in soil, the equilibrium partitioning method (EPM) was used. The following physcicochemical properties of triisopropylsilanol were used for derivation of PNECs in soil and sediment.
Molecular weight: 174.36
Water solubility: < 0.7 mg/l at 20°C
Estimated log Pow: 3.8684
Estimated vapour pressure: 1.25 Pa at 25°C
PNEC oral is not submitted due to the lack of the relevant data at this level of registration.
Conclusion on classification
Triisopropylsilyl acrylate is classified as R50 Very toxic to aquatic organisms, and R53 May cause long-term adverse effects in the aquatic environment under Council Directive 67/548/EEC and Chronic Category 1, H410: Very toxic to aquatic life with long lasting effects / Acute Category 1, H400: Very toxic to aquatic life, with M-factor of 10, under Regulation (EC) No 1272/2008 with available ecotoxicological information.
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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