Registration Dossier
Registration Dossier
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EC number: 700-879-7 | CAS number: 1379822-00-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.016 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 12.58 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.23 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.023 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:
- 0.045 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
PNEC freshwater sediment:
K_(susp-water) = 36.9
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_water * 1000
= (36.9/1150)* 0.00156 *1000
= 0.05 mg/kg wwt
= 0.23 mg/kg dwt
PNEC marine water sediment:
K_(susp-water) = 36.9
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_marine water* 1000
= (36.9/1150)*0.000156* 1000
= 0.005 mg/kg wwt
= 0.023 mg/kg dwt
PNEC soil:
K_(soil-water) = 43.4
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water)/ RHO_(soil))*PNEC_water * 1000
= (43.4/1700)* 0.00156* 1000
= 0.04 mg/kg wwt
= 0.045 mg/kg dwt
Conclusion on classification
Acute aquatic toxicity:
Algae is the most sensitive aquatic species with an EC50 of 1.56 mg/L. According to Regulation (EC) No 1272/2008 (CLP, GHS) the test item does not have to be classified regarding short-term (acute) toxicity to the environment as the lowest LC50 value is above 1 mg/L.
Chronic aquatic toxicity:
Algae is the most sensitive aquatic species with an EC50 of 1.56 mg/L. For the derivation of classification and labelling also the 72-h EC10 value based on growth rate was determined as 0.49 mg/L has to be taken into acount. Under the test conditions the percentage of ready biodegradation of the test substance reached a mean of -0.8 % (that was considered as zero biodegradation) after 28 days based on its COD. The test item can be considered to be not readily biodegradable. As a result the substance has to be classified as env. long-term (chronic) tox. cat 2 (H411: Toxic to aqautic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP/GHS), as amended for the fifteenth time in Regulation (EU) No 2020/1182.
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