Registration Dossier
Registration Dossier
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EC number: 240-465-9 | CAS number: 16415-13-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
Classification relevant information
Degradation
Biodegradation: inherently biodegradable (57% after 28 d and 65% after 60 d, OECD 301F)
Hydrolysis: DT50: 58.4 h at pH 7, 1.0 h at pH 4 and 0.7 h at pH 9 (20-25 °C)
Bioaccumulation
Log Kow = 8.89 (QSAR)
BCF = 312 - 902 (BCFBAF v3.01, QSAR)
Aquatic acute toxicity
Fish: LC50 > 1000 mg/L (nominal, OECD 203, Danio rerio) based on read across from CAS 16415-12-6
Aquatic invertebrates: EC50 (48 h) > 100 mg/L (nominal, OECD 202, Daphnia magna) based on read across from CAS 16415-12-6
Algae/aquatic plant: ErC50 (72 h) > 31.8 mg/L (nominal, methanol as solvent) and > 29.5 mg/L (nominal, TBA as solvent), (OECD 201, Scenedesmus subspicatus) based on read across from CAS 16415-12-6
Aquatic chronic toxicity:
Fish: no data available
Aquatic invertebrates: NOEC (21 d) ≥ 10 mg/L (nominal, OECD 211, Daphnia magna) based on read across from CAS 16415-12-6
Algae/aquatic plant: ErC10 (72 h) ≥ 31.8 mg/L (nominal, methanol as solvent) and 20.91 mg/L (nominal, TBA as solvent), (OECD 201, Scenedesmus subspicatus) based on read across from CAS 16415-12-6
Classification according to CLP
Triethoxy(hexadecyl)silane (CAS 16415-13-7) is not considered rapidly degradable. Acute toxicity data are available for three trophic levels (fish, aquatic invertebrates and algae). No effects causing 50% mortality to aquatic invertebrates (EC50) or 50% inhibition to growth rate (ErC50) for aquatic algae were detected up to the limit of water solubility. Chronic aquatic toxicity data indicate no hazard within the range of water solubility. Therefore, triethoxy(hexadecyl)silane (CAS 16415-13-7) is not classified and labeled according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
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