Registration Dossier
Registration Dossier
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EC number: 226-241-3 | CAS number: 5332-73-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.044 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.44 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.004 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 82.5 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.273 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.027 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:
- 0.029 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
The environmental classification of the substance is currently not harmonised according to the CLP Regulation (EC) 1272/2008.
Based on the available toxicity data on the substance and two related substances, the lowest valid acute effect concentration for freshwater aquatic organisms is 44 mg/L (ErC50 value for algae) and the only available valid chronic effect concentration is 29 mg/L (ErC10 value for algae).
Based on the available data the substance should not be classified for Aquatic Acute toxicity. As the ErC10 for algae is > 1 mg/L (ErC10 = 29 mg/L; no other long-term studies are available) the substance should not be classified for chronic toxicity. When determining chronic classification based on the available acute toxicity data, the substance would not be classified either as its log Kow is < 4 and the substance can be considered rapidly degradable (based on the results of an inherent biodegradability study according to OECD guideline 302B).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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