Registration Dossier
Registration Dossier
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EC number: 268-452-3 | CAS number: 68092-28-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.041 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.004 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 3.65 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 66.4 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 6.64 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:
- 13.22 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 0.25 mg/kg food
- Assessment factor:
- 1 200
Additional information
PNECs were calculated in line with the Guidance on information requirements and chemical safety assessment Chapters R.10.
Data on the substance were related to acute ecotoxicity studies across three trophic levels (fish, daphnia and algae) and a chronic study on Daphnia Magna. The PNEC STP was calculated from the toxicity values seen in the ready biodegradability study.
Conclusion on classification
In accordance with the criteria set out in section 4.1.2.6 (Table 4.1.0) of Regulation (EC) No 1272/2008 (CLP), the substance is classified as hazardous to the aquatic environment, Chronic Category 3.
This is based on the NOEC value from the available chronic ecotoxicity study on Daphnia Magna (NOEC = 1 mg/L) and the biodegradation properties of the substance (readily biodegradable).
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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