Registration Dossier
Registration Dossier
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EC number: 600-724-2 | CAS number: 106232-82-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Classification related key information
Biodegradation in water: Readily biodegradable: 72% (CO2 evolution) in 28 days (OECD 301B)
Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates.
Acute toxicity:
- to Fish: LC50 (96h) > 100 mg/L for Danio rerio
- to Crustacea: EL50 (48h) = 51 mg/L for Daphnia magna
- to Algae: EL50 (72h) > 10 mg/L Pseudokirchneriella subcapitata
Chronic toxicity:
The risk assessment is based on alcohol ethoxylate specific QSARs
- to Fish: EC20 (30d) = 0.386 mg/L Pimephales promelas
- to Crustacea: EC20 (21d) = 0.098 mg/L for Daphnia magna
- to Algae: ECr20 = 0.247 mg/L Desmodesmus subspicatus
Classification justification according to CLP
Based on the data above, alcohol ethoxylate (C16-20, < 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 0.098 mg/L. Therefore, alcohol ethoxylate (C16-20, < 2.5 EO) needs to be classified and labelled as environmental hazard Chronic Cat. 2 according to the Regulation (EC) No. 1272/2008 (CLP) (8thATP).
M-factor for acute aquatic toxicity: no factor assigned
M-factor for chronic aquatic toxicity: no factor assigned
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