Registration Dossier
Registration Dossier
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EC number: 614-657-1 | CAS number: 68609-08-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.016 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:
- 3.1 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 10.5 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 1.05 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:
- 2.1 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNEC freshwater sediment:
K_(susp-water) = 1650
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water) / RHO_(susp)) * PNEC_water * 1000
= (1650/1150) * 0.00159 * 1000
= 2.28 mg/kg wwt
= 10.5 mg/kg dwt
PNEC marine water sediment:
K_(susp-water) = 1650
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water) / RHO_(susp)) * PNEC_marine water * 1000
= (1650/1150) * 0.000159 * 1000
= 0.228 mg/kg wwt
= 1.05 mg/kg dwt
PNEC soil:
K_(soil-water) = 1980
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water) / RHO_(soil)) * PNEC_water * 1000
= (1980/1700) * 0.00159 * 1000
= 1.85 mg/kg wwt
= 2.1 mg/kg dwt
Conclusion on classification
Acute toxicity:
Daphnia is the most sensitive species with a EC50 value of 1.59 mg/L. According to Regulation (EC) No 1272/2008 (CLP, GHS) the test substance has not to be classified regarding short-term (acute) toxicity to the environment as the lowest LC50 value is above 1 mg/L.
Chronic toxicity:
Daphnia is the most sensitive species with an EC50 value of 1.59 mg/L. For derivation of classification and labelling also the algae 72-h EC10 value based on growth rate was determined as 1.99 mg/L has to be taken into account. In a biodegradation closed bottle study, according to EU method C.4–E, no biodegradation was observed.
As a result the substance has to be classified as long-term (chronic) aquatic toxic cat 2, H411 according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the tenth time in Regulation (EU) No 2017/776.
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