Registration Dossier
Registration Dossier
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EC number: 246-922-9 | CAS number: 25378-22-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- sensitivity distribution
- PNEC freshwater (intermittent releases):
- 0.001 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- sensitivity distribution
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 9.55 mg/kg sediment dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 9.55 mg/kg sediment dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 1.93 mg/kg soil dw
- Assessment factor:
- 1
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Additional information
Aquatic PNECs were derived using the PETROTOX model and the soil and sediment PNECs were calculated using the equilibrium partitioning method.
Conclusion on classification
The acute data available for dodecene are read across from dodec-1 -ene and indicate that acute effects on algae and daphnia are observed at <1mg/l. Dodec-1 -ene was not acutely toxic to fish at its limit of solubility. On the basis of these resulte dodecene would be classified as 'R50/R53 very toxic to aquatic organisms and may cause long term adverse effects in the aquatic environment' under the DSD Directive as although dodecene is readily biodegradable it has a log Kow >3. Dodecene would be classified as both Acute and Chronic Category 1 under the EU CLP Regulations as although it is readily biodegradable it has a log Kow >4.
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