Registration Dossier
Registration Dossier
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EC number: 247-955-1 | CAS number: 26748-41-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.003 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.003 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 96.69 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.439 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.044 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:
- 0.087 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
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
PNEC freshwater sediment:
K_(susp-water) = 112
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water) / RHO_(susp)) * PNEC_water * 1000
= (112/1150) * 9.8E-04 * 1000
= 0.095 mg/kg wwt
= 0.439 mg/kg dwt
PNEC marine water sediment:
K_(susp-water) = 112
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water) / RHO_(susp)) * PNEC_marine water * 1000
= (112/1150) * 9.8E-05 * 1000
= 0.0095 mg/kg wwt
= 0.0439 mg/kg dwt
PNEC soil:
K_(soil-water) = 133
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water) / RHO_(soil)) * PNEC_water * 1000
= (133/1700) * 9.8E-04 * 1000
= 0.0767 mg/kg wwt
= 0.087 mg/kg dwt
Conclusion on classification
Acute toxicity:
Fish is the most sensitive specie for the acute toxic effects of the test item with an acute EC50 of 0.33 mg/L. Based on the this data, the substance has to be classified with regard to short-term (acute) environmental toxicity with aquatic acute cat. 1 (H400: Very toxic to aquatic life, M = 1) according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the eighteenth time in Regulation (EU) 2022/692.
Chronic toxicity:
Classification of the test item is based on long-term toxicity data.
Aquatic invertebrates are the most sensitive species to long-term toxic effects of the test item with a chronic NOEC of 0.049 mg/L. Algae toxicity (72 h) confirms this value with an EC10 value of 0.06 mg/L. As the test item is ready biodegradable, the substance is classified as long-term (chronic) aquatic cat. 2 (H411: Toxic to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the eighteenth time in Regulation (EU) 2022/692.
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