Registration Dossier
Registration Dossier
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EC number: 211-687-3 | CAS number: 686-31-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.46 µg/L
- Assessment factor:
- 50
- PNEC freshwater (intermittent releases):
- 2.8 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.046 µg/L
- Assessment factor:
- 500
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 81.6 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 8.16 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:
- 13.7 µg/kg soil dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
- Biodegradability: the test item is readily biodegradable
- Log Kow = 4.56
- Short term toxicity to aquatic invertebrates: 48h-EC50 = 3.7 mg/L
- Toxicity to aquatic algae: ErC50-72h= 0.28 mg/L & ErC10-72h= 0.023 mg/L
- Long term toxicity to aquatic invertebrates (read across): 21 d NOEC = 0.45 mg/L
- Short term toxicity to fish (read across): 96 h LC50 = 8.66 mg/L
- According to the Directive 67/548/EC: R50/53
- According to CLP: acute toxicity category 1 (M-factor = 1) - chronic toxicity category 1 (M-factor = 1)
The following data for aquatic toxicity and environmental fate are available:
Regarding these data,Tert-pentyl 2-ethylperoxyhexanoate should be classified as follows:
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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