Registration Dossier
Registration Dossier
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EC number: 939-597-6 | CAS number: 68610-66-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.106 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.071 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.011 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 13.7 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.429 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.043 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:
- 7.5 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
The assessment is based on the data currently available. New studies, based on the category review and the final decisions issued for some of the category substances, which are also relevant for this assessment, are currently being conducted. The hazard assessment with respect to aquatic toxicity will be updated once all ongoing studies have been finalised.
Classification related key information
Biodegradation in water: readily biodegradable (OECD 301B)
Bioaccumulation: no potential to bioaccumulate; log Kow 0.675
Acute toxicity:
- fish: LC50 (96 h): 7.1 mg a.i./L (nominal, OECD 203)
- invertebrates EC50 (48 h): 91 mg a.i./L (nominal, OECD 202)
- algae: ErC50 (72 h) > 100 mg a.i./L (nominal, OECD 201)
Chronic toxicity:
- invertebrates: NOEC (21 d): 5.3 mg a.i./L (measured, OECD 211)
- algae: NOErC (72 h): 31.3 mg a.i./L (nominal, OECD 201)
Classification justification according to CLP
Based on the data above, AES (C10 -12, 1-2.5EO) Na is considered to be rapidly degradable and has a low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 are above 1 mg/L for fish, invertebrates and algae. Valid chronic toxicity data are available to aquatic invertebrates and algae – the lowest NOEC/EC10 is 5.3 mg/L (thus not in the range of > 0.1 to < 1 mg/L) for aquatic invertebrates. AES (C10 -12, 1 -2.5EO) NH4 does not need to be classified and labeled as environmental hazard according to the Regulation (EC) No.1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2nd ATP).
M-factor for acute aquatic toxicity: -
M-factor for chronic aquatic toxicity: -
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