Registration Dossier
Registration Dossier
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EC number: 205-281-5 | CAS number: 137-16-6
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
- PNEC freshwater (intermittent releases):
- 0.089 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.009 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 3 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.064 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.006 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:
- 0.008 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
Environmental fate and pathways
Biodegradation
Readily biodegradable: 82% within 28 d (ISO Guideline 14593)
Bioaccumulation
log Pow = 0.37 (EPISuite v4.11, KOWWIN v1.67)
Aquatic acute toxicity
Fish
LC50 (96 h) = 32.1 mg a.i./L (nominal, 100% a.s. (calculated), OECD 203, D. rerio)
Aquatic invertebrates
EC50 (48 h) = 8.91 mg a.i./L (nominal, 100% a.s. (calculated), OECD 202, D. magna)
Algae
ErC50 (72 h) = 79 mg/L(measured geom. mean, OECD 201, D. subspicatus)
Aquatic chronic toxicity
Algae
NOErC (72 h) = 9.2 mg/L (measured geom. mean, OECD 201, D. subspicatus)
CLP
Based on the available data listed above, the most sensitive acute effect concentration was obtained for aquatic invertebrates with an EC50 (48 h) of 8.91 mg/L (nominal, 100% a.s. calculated). The NOErC (72 h) = 9.2 mg/L for algae is the only chronic aquatic effect concentration available. In addition, the substance is readily biodegradable and has a log Kow of 0.37. Thus, the substance is not classified according to the consolidated version of Regulation (EC) No 1272/2008 (CLP) and following amendments (ATPs).
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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