Registration Dossier
Registration Dossier
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EC number: 266-587-2 | CAS number: 67151-63-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.026 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.26 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.003 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.619 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.062 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:
- 0.108 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 1.67 mg/kg food
- Assessment factor:
- 300
Additional information
Conclusion on classification
The environmental classification of the test substance is currently not harmonized according to the CLP Regulation (EC) 1272/2008 and the Dangerous Substance Directive 67/548/EC.
Based on available acute toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 26 mg/L (EC50 value for daphnia).
The substance is not readily biodegradable; its logKow is < 4. Based on available data the substance should not be classified for acute toxicity. From the acute data, daphnia appear to be the most sensitive species. No chronic daphnia data are available but calculations with ECOSAR v 1.11 following the aliphatic amines class, gives a chronic Daphnia value (ChV) of approx. 7.2 mg/L. As the measured NOEC value for algae is > 1 mg/L (12.5 mg/L for algae, no other measured long-term studies are available), and the predicted chronic value for Daphnia (the most sensitive species) is also above 1 mg/L, the substance should not be classified for chronic toxicity either, following section 4.1.2.6 of the CLP Regulation.
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