Registration Dossier
Registration Dossier
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EC number: 695-022-6 | CAS number: 473278-76-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 5.3 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 53 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.53 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 81.1 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 8.1 µg/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:
- 40 µg/kg soil dw
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Brief description of the data relevant for classification
Biodegradation in water: not readily biodegradable (OECD 301F)
Bioaccumulation: no potential to bioaccumulate; log Kow = 1.9 at pH 2 and 25 °C (OECD 107), log D = ca. 1.0, ca. -1.9, and ca. -3.9 (at pH 4, 7, and 9)
Water solubility: 64.2 g/L at 20 ºC (OECD 105)
Acute toxicity:
- For fish: 96 h LC50 (Oncorhynchus mykiss) > 100 mg/L (nominal, OECD 203)
- For invertebrates: 48 h EC50 (Daphnia magna, immobilization) > 100 mg/L (nominal, OECD 202)
- For algae: 72 h ErC50 (Pseudokirchneriella subcapitata) = 5.3 mg/L (mean measured, OECD 201)
Chronic toxicity:
- For algae: 72h NOErC (Pseudokirchenriella subcapitata) = 1 mg/L (nominal, OECD 201)
Classification justification according to CLP
Based on the data above, the substance is considered to be not readily biodegradable and has a low potential for bioaccumulation. The most sensible acute aquatic toxicity L(E)C50 is 5.3 mg/L for algae. Valid chronic toxicity data are available for algae, with a NOEC of 1 mg/L. As detailed in the Guidance on the Application of the CLP Criteria, section 4.1.3.3.1 (ECHA, 2015), and according to the Regulation (EC) No. 1272/2008 (CLP) and the Regulation (EU) No. 487/2013 (4th ATP), the test substance needs to be classified and labeled as environmental hazard Chronic Cat. 2.
M-factor for acute aquatic toxicity: need not to be assigned
M-factor for chronic aquatic toxicity: need not to be assigned
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