Registration Dossier
Registration Dossier
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EC number: 201-254-7 | CAS number: 80-15-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.003 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.031 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.35 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.023 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.002 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.003 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
Short-term toxicity to fishThe 96 h NOEC, LC50 and LC100 were determined to be 1.5, 3.9, and 6 mg/L nominal.
Short-term toxicity to aquatic invertebratesThe 48 h NOEC, LOEC, and EC50 were determined to be 9.15, 18.23, and 18.84 mg/L based on geometric mean measured concentrations.
The 72h EC50 (growth rate) growth inhibition of cumyl hydroperoxide to Scenedesmus subspicatus
was 3,1mg/L. The NOEC was 1,0 mg/L for growth rate.
The ready biodegradability of cumene hydroperoxide was investigated in a study conducted according to OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test). The test substance proved to be not readily biodegradable (3% biodegradation after 28 d).
According to 67/548 CEE criteria, 1-methyl-1-phenylethyl hydroperoxide is classified as R51/53 and Aquatic Chronic Category 2 with regards to CLP criteria.
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