Registration Dossier
Registration Dossier
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EC number: 247-988-1 | CAS number: 26762-93-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 8.2 µg/L
- Assessment factor:
- 1 000
- PNEC freshwater (intermittent releases):
- 82 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.82 µg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.06 mg/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.226 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.023 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:
- no exposure of soil expected
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
One key study is available concerning the acute toxicity of Diisopropylbenzene hydroperoxide for each of the three trophic compartments: algae, daphnia and fish. Daphnia is the most sensitive species with EC50 value of 8.2 mg/L. In addition, the toxicity to microorganisms has been determined given EC50 and EC10 of 46.7 mg/L and 10.6 mg/L, respectively.
Diisopropylbenzene hydroperoxide is not readily biodegradable and its log Kow was estimated at 3.2.
Taking into account all these information, the substance is classified Aquatic chronic toxicity 2 (H411) according to CLP.
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