Registration Dossier
Registration Dossier
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EC number: 245-883-5 | CAS number: 23783-42-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 20 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 200 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 2 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 20 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 000 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 73.8 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 7.38 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:
- 3.41 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Formula for the calculation of PNECsed using the equilibrium partitioning approach:
PNEC(sed) = (Ksed-water x PNEC(aqua) / RHOsed) * 1000
PNEC(sed) Predicted No Effect Concentration in sediment [mg/kg, wet weight]
Ksusp-water partition coefficient sediment / water [0.923 m3/m3]
RHOsed bulk density of sediment matter [1150 kg/m3]
PNECaqua Predicted No Effect Concentration in water [as above]
Formula for the calculation of PNECsoil using the equilibrium partitioning approach:
PNEC(soil) = (Ksoil-water x PNEC(aqua) / RHOsoil) * 1000
PNEC(soil) Predicted No Effect Concentration in sediment [mg/kg, wet weight]
Ksoil-water partition coefficient sediment / water [0.255 m3/m3]
RHOsoil bulk density of soil matter [1700 kg/m3]
PNECaqua Predicted No Effect Concentration in water [as above]
Conclusion on classification
The very low toxicity of this substance to aquatic species coupled with its ready biodegradability mean that it does not meet the criteria for classification.
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