Registration Dossier
Registration Dossier
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EC number: 946-061-5 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1.6 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 16 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.16 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 1.6 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 4.29 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.46 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.146 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:
- 0.292 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNEC sediment(freshwater), PNEC sediment (marine waters), PNEC soil
No toxicity tests with sediment dwelling or terrestrial organisms are available. Thus, in accordance with the Guidance on information requirements and chemical safety assessment, Chapter R.10: Characterisation of dose [concentration]-response for environment, 2008, the PNEC for freshwater and marine water sediment as well as the PNEC soil have been calculated with the equilibrium partitioning method using EUSES 2.1.
The following data have been taken into account for calculation:
Molecular weight |
415.0 |
Melting point |
-20°C |
Vapour pressure |
2.77E-5 Pa at 25°C |
Water solubility |
16 mg/L at 20°C |
Log Kow |
4.77 at 20°C |
Koc |
9120 L/kg |
PNEC Aqua(freshwater) |
1.6 µg/L |
PNEC Aqua(marine water) |
0.16 µg/L |
The calculation resulted in a PNEC sediment(freshwater) of 1.46 mg/kg sediment dw, a PNEC sediment (marine waters) of 0.146 mg/kg sediment dw and a PNEC soil of 0.292 mg/kg soil dw.
Conclusion on classification
For the environmental classification, the following test results for the registration substance are considered:
readily biodegradable
logKow: 4.77
3 acute tests on environmental organisms covering all 3 trophic levels, lowest acute test result: 1.6 mg/L (daphnia)
Acute aquatic hazard: no classification as EC50>1mg/L
Chronic aquatic hazard: category chronic 2
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