Registration Dossier
Registration Dossier
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EC number: 500-116-6 | CAS number: 52609-19-5 1 - 2.5 moles ethoxylated
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.015 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 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:
- 151.1 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 15.1 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: 76% (CO2 evolution) in 28 days (ISO 14593 Draft)
Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates.
Acute toxicity:
- to Fish: LC50 (96h) = 108 mg/L for Danio rerio
- to Crustacea: EL50 (48h) = 51 mg/L for Daphnia magna
- to Algae: EL50 (72h) > 10 mg/L for Pseudokirchneriella subcapitata
Chronic toxicity:
The risk assessment is based on alcohol ethoxylate specific QSARs
- to Fish: EC20 (30d) = 0.464 mg/L for Pimephales promelas
- to Crustacea: EC20 (21d) = 0.150 mg/L for Daphnia magna
- to Algae: ErC20 (72h) = 0.322 mg/L for Desmodesmus subspicatus
Classification justification according to CLP
Based on the data above, 2-hexyldecan-1-ol ethoxylated (< 2.5 EO) is considered rapidly biodegradable. The acute aquatic toxicity L(E)C50 is > 1 mg/L. Based on QSAR calculations the lowest expected long-term effect value is 0.150 mg/L Therefore, 2-hexyldecan-1-ol ethoxylated (< 2.5 EO) needs to be classified and labelled as environmental hazard Chronic Cat. 3 according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
M-factor for acute aquatic toxicity: no factor assigned
M-factor for chronic aquatic toxicity: no factor assigned
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