Registration Dossier
Registration Dossier
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EC number: 800-038-5 | CAS number: 1071838-81-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.084 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.84 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.008 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.48 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The results from the aquatic toxicity studies are as follows:
LC50 (96 h) fish > 0.1 mg/l (measured concentration)
EC50 (48 h) Daphnia = 0.084 mg/l (measured concentration) with 95% confidence limits of 0.072 - 0.097 mg/l.
ErC50 (72 h) algae = 0.174 mg/l (measured concentration) with 95% confidence limits of 0.153 -0.210 mg/l.
NOEC microorganisms = 14.8 mg/l.
Based on the results from the aquatic toxicity (values < 1 mg/l) and since the substance is not readily biodegradable and has a log Kow of < 0.3, the substance is classified as follows:
- according to the CLP Regulation 1272/2008 the substance is classified as Aquatic Acute 1 (Hazard statement: H400)
- according to the ATP 2 of CLP (regulation UE 286/2011) the substance is classified as Aquatic Chronic 1 (Hazard statement: 410) (EC50 (48 h) Daphnia < 0.1 mg/l and CuGUN is substance is not rapidly degradable ( “degradation” means the decomposition of organic molecules to smaller molecules and eventually to carbon dioxide, water and salts)).
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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