Registration Dossier
Registration Dossier
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EC number: 201-178-4 | CAS number: 79-11-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.7 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.33 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.07 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.033 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.6 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 2.57 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.257 µg/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:
- 0.006 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
PNECs are in line with the EU RAR 2005. The only small change is that aquatic PNEC is updated using the EC10 instead of the NOEC. Due to the use of the EPM for predicting the hazard for the benthic compartment also the PNEC sediment values are slightly changed.
Conclusion on classification
The substance is readily biodegradable. Based on an algae toxicity EC50 value of 0.033 mg/L and an EC10 value of 0.007 mg/L, the substance should be classified as Aquatic Acute Cat 1 and Aquatic Chronic Cat 1.
M factor acute: 10
M factor chronic: 1
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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