Registration Dossier
Registration Dossier
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EC number: 204-854-7 | CAS number: 127-65-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.11 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.028 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.011 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.003 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.057 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.97 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.097 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:
- 0.408 mg/kg soil dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Both short and long-term toxicity tests for fish, algae and inverterbrates are available for the substance.
The 72h-EC50 for Artemia and 48h EC50 daphnia were 24.55 and 4.5 mg/L respectively. For algae a 72h-ErC50 of 13 mg/L was derived, while for fish a worst case 96h-LC50 of 2.8 (rainbow trout) was determined. Based on the lowest available acute data for fish being 2.8 mg/L, the substance does not need to be classified for acute aquatic toxicity according to Table 4.1.0 (a) of CLP.
As there is adequate chronic toxicity data available for all three trophic levels and the substance is readily biodegradable, long term toxicity can be derived according to Table 4.1.0(b)ii. Considering the lowest chronic value available from daphnia and fish with a NOEC of 1.1 mg/L and the ErC10 algae is above 1 mg/L, the substance does not need to be classified for long-term aquatic hazard based on the criteria outlined in the EU CLP (1272/2008/EC and its updates). M factor for the acute and chronic toxicity are therefore not applicable.
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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