Registration Dossier
Registration Dossier
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EC number: 701-394-3 | CAS number: 1782069-81-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.4 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 5.6 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.04 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.515 mg/kg sediment dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 51.5 µg/kg sediment dw
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.564 mg/kg soil dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 5.56 mg/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
Aquatic acute toxicity
96 h, LC50 (Brachydanio rerio): > 0.74 mg/L (measured concentration)
48 h, EC50 (Daphnia magna): 0.56 mg/L (nominal concentration)
72 h, IC50 (Desmodesmus subspicatus): 7.66 mg/L (nominal concentration)
Aquatic chronic toxicity
21 d, NOEC (Daphnia magna): 0.02 mg/L (nominal concentration)
72 h, IC10 (Desmodesmus subspicatus): 0.81 mg/L (nominal concentration)
Biodegradation: Not readily biodegradable, no degradation after 28 days
Partition coefficient: log Kow = 5.1
Water solubility: 1.08 mg/L at 20°C
Classification, Labelling, and Packaging Regulation (EC) No 1272/2008
Acute aquatic data for the test item are available from three trophic levels. The most sensitive species was determined to be Daphnia magna, with a key EC50 of 0.56 mg/L. The test item is therefore classified as acute aquatic toxicity category 1 with an M factor of 1, according to CLP Regulation (EC) No 1272/2008 (8th Adaptation to Technical Progress).
Chronic toxicity data are available for algae and aquatic invertebrates. Daphnids were the most sensitive species, with a NOEC of 0.02 mg/L for effects on reproduction and body length. As the substance is not rapidly degradable, the test item classified as chronic aquatic toxicity category 1 with an M factor of 1, according to CLP Regulation (EC) No 1272/2008 (8th Adaptation to Technical Progress).
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