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.
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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