Registration Dossier
Registration Dossier
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EC number: 947-751-9 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.34 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 3.4 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.034 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.34 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.98 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 4.5 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.45 µg/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:
- 0.71 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
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
A short-term algae study is available on the test substance 'mono- and di- C16 PSE, K+ and C16-OH and isostearyl isostearate' and the Daphnia and fish toxicity studies have been assessed based on studies available for substances representative of the main constituents (i.e., PSE, alcohol and isoalkylester). Although no toxicity was found in fish and Daphnia, which are assessed based on studies for substance representing the main constituents, but the algae study with the test substance revealed effects (on growth rate and cell densities) leading to establishment of NOEC at 0.14 mg/L. Therefore, the EC50 value of >0.34 mg/L (based on measured concentration) from the algae study with the test substance warrants an ‘Aquatic Acute 1; H400: Very toxic to aquatic life’ classification according to the EU CLP criteria (Regulation 1272/2008/EC). Further, in absence of long-term studies and given that the test substance is considered to be readily biodegradable and has a low bioaccumulation potential (based on weighted average estimated BCF of 377.7 L/kgas well as log Kow of 2.7), no aquatic chronic classification is warranted according to EU CLP criteria (Regulation 1272/2008/EC).
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