Registration Dossier
Registration Dossier
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EC number: 500-241-6 | CAS number: 69011-36-5 1 - 2.5 moles ethoxylated
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 4.36 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 5.44 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.436 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.544 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.35 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.119 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.012 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:
- 0.021 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
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: 60 – 80% (CO2 evolution) in 28 days (OECD 301B; read across)
Log Kow: Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates.
Acute toxicity:
- to fish: LL50 (96h) > 1.1 mg/L (geom. mean measured, OECD 203)
- to aquatic invertebrates: EL50 (48h): 0.544 mg/L (geom. mean measured, OECD 202)
- to algae: ErC50 (72h): 3.4 mg/L (meas. arith. mean, OECD 201)
Chronic toxicity:
- to fish: no data available
- to aquatic invertebrates: NOEC (21 d) : 0.218 mg/L (TWA, OECD 211)
- to algae: ErC10 (72h): 1.33 mg/L (meas. arith. mean, EU method C.3)
Classification justification according to CLP
Based on the available data Isotridecanol, ethoxylated, < 2.5 EO (CAS 69011-36-5) is considered rapidly biodegradable with a low potential for bioaccumulation. An EL50 (48h) of 0.544 mg/L was determined for the most sensitive organism, Daphnia magna. The chronic effect concentration determined for D. magna was NOEC (21 d): 0.218 mg/L. Therefore, Isotridecanol, ethoxylated, < 2.5 EO needs to be classified and labelled for environmental hazards as Acute 1 and Chronic 3 according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
M-factor for acute aquatic toxicity: 1
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