Registration Dossier
Registration Dossier
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EC number: 203-271-5 | CAS number: 105-11-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.012 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.001 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.92 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.007 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.001 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:
- 0.009 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The substance meets classification criteria under Regulation (EC) No 1272/2008 as hazardous to the aquatic environment: Aquatic Chronic 2
The test item is ‘not readily biodegradable’
The test item has a measured log Kow <= 4.0 which indicates a Bioconcentration Factor (BCF) is considered <= 500 L/wt
The test item indication of EC50/LC50 1-10 mg/L
and relevant EC10 (algae) or NOEC (algae) < 1 mg/L in available studies
Daphnia EC50-48h = 3.5 (95% CL: 3.4 - 3.7) mg/L based on “5” concentrations, 48-hour, freshwater, OECD TG 202, 2018
Algae: ErC50-72h (aquatic algae; growth rate) = 1.2 (95% C.I.: 1.0 - 1.4) mg/L, based on “6” concentrations, 72 hour, freshwater, OECD TG 201, 2018
EC10 (aquatic algae; growth rate) = 0.21 (95% C.I.: 0.15 - 0.27) mg/L, based on “6” concentrations, 72 hour, freshwater, OECD TG 201, 2018
Fish LC50-96h = 24 (95% C.I.: 18 - 32) mg/L, based on “5” concentrations, 96 hour, freshwater, OECD TG 203, 2018
References:
1. ECHA Guidance on Application on the CLP Criteria, (v5.0, July 2017)
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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