Registration Dossier
Registration Dossier
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EC number: 237-438-9 | CAS number: 13784-51-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.17 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.054 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.017 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 6.2 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.53 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.153 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:
- 0.2 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
Three acute endpoints for three different trophic levels are available. The lowest ErC50 is found for algae and is 5.4 mg/L. Two chronic endpoints for algae and Daphnia, the most sensitive species are available, The lowest EC10 is 1.7 mg/L.
From a hydrolysis study and a ready biodegradability study it can be concluded that 2,4 -pentanedione peroxide is not persistent.
2,4 -pentanedione peroxide has a low log Kow (log kow < 3).
Under Regulation (EU) No 286/2011 (2nd ATP to CLP) neither acute nor chronic (based on acute and/or chronic data) environmental classification is needed.
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