Registration Dossier
Registration Dossier
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EC number: 248-742-6 | CAS number: 27939-60-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.009 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 13.8 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.169 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.017 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:
- 0.025 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
Conclusion on classification
Short-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae). The acute effect values for fish (Onchorynchus mykiss), daphnids (Daphnia magna)and algae (Pseudokirchneriella subcapitata) are 8.6, 24.6 and 22.2 mg/L, respectively. Based on these acute values, the substance does not need to be classified for acute aquatic hazard.
Long-term aquatic toxicity data are available only for aquatic algae, for which a ErC10 value of 10.7 mg/L was determined. As only one reliable long-term toxicity endpoint is available, chronic classification needs to be based on both chronic and acute data, of which the most stringent outcome is used for the final classification.
Based on the chronic data (ErC10 >10 mg/L) and the substance non-readily biodegradability, the substance does not need to be classified. Regarding acute data for the other trophic levels (lowest acute effect value in the range of 1 - 10 mg/L), the substance being not readily biodegradable and a log Kow of 3.1 (no experimental BCF is available), the substance needs to be classified as Aquatic Chronic 2. Therefore, based on short-term toxicity data, the substance is classified as Aquatic Chronic 2 (H411) according to EU CLP (EC 1272/2008 and its amendments).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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