Registration Dossier
Registration Dossier
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EC number: 500-046-6 | CAS number: 26183-52-8 1 - 2.5 moles ethoxylated
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.292 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.004 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.029 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.4 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 31.92 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 3.19 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:
- 1 mg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Classification related key information
Biodegradation in water: Readily biodegradable
Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates.
Acute toxicity:
Fish: LC50 (96h) = 1.2 mg/L
Crustacea: EC50 (48h) = 0.39 mg/L
Algae: ErC50 (72h) = 0.43 mg/L
Chronic toxicity:
The risk assessment is based on alcohol ethoxylate specific QSARs
Fish: EC20 (30d) >= 2.92 - <= 5.14 mg/L
Crustacea: EC20 (21d) >= 3.72 - <= 6.55 mg/L
Algae: ErC20 (72h) >=3.23 - <= 5.67 mg/L
Classification justification according to CLP
Based on the data above, decan-1 -ol, ethoxylated, 1-2.5EO (CAS 26183-52-8) is considered rapidly biodegradable. The acute aquatic toxicity L(E)C50 is < 1 mg/L for algae and Daphnia. Based on QSAR calculations the lowest expected long-term effect value is 2.92 mg/L Therefore, decan-1 -ol, ethoxylated, 1-2.5EO (CAS 26183-52-8), needs to be classified and labelled as environmental hazard Acute Cat. 1 according to the Regulation (EC) No. 1272/2008 (CLP) and all further amendments.
M-factor for acute aquatic toxicity: 1
M-factor for chronic aquatic toxicity: no factor assigned
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