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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.005 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:
0.001 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
4.2 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
230.37 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
23.04 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

Studies on the aquatic toxicity of the category substances are ongoing. The PNEC derivation will be updated as soon as all relevant data are available.

Classification related key information

Biodegradation in water: Readily biodegradable: 83.6% (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) = 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) = 0.269 mg/L for Pimephales promelas

- to Crustacea: EC20 (21d) = 0.0542 mg/L for Daphnia magna

- to Algae: ECr20 (72h)= 0.159 mg/L for Desmodesmus subspicatus

Classification justification according to CLP

Based on the data above, alcohol ethoxylate (C18, < 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 0.0542 mg/L. Therefore, alcohol ethoxylate (C18, < 2.5 EO) needs to be classified and labelled as environmental hazard Chronic Cat. 2 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