Registration Dossier
Registration Dossier
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EC number: 500-097-4 | CAS number: 37353-75-6 1 - 4.5 moles propoxylated
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
- PNEC freshwater (intermittent releases):
- 0.023 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 100
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.64 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.064 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:
- 0.075 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
Although the substance is not readily biodegradable and has a partition coefficient of > 3, the substance is not classified as STOT category 1 or 2 or toxic for reproduction 1A, 1B or 2. Therefore it is viewed that the substance does not have the potential to cause toxic effects if it accumulates in higher organisms (as stated in ECHA TGD Guidance on information requirements and chemical safety assessment Part B: Hazard assessment section 7.2.7)
Conclusion on classification
The information concerning the aquatic toxicity of the substance are summarized hereafter:
Acute toxicity to fish: LC50_96hr = 8.8 mg/L
Acute toxicity to daphnia: EC50_48hr = 2.3 mg/L
Toxicity to algae ErC50_72 hr = 28 mg/L and ErC10_72hr = 5.1 mg/L
The substance is inherently biodegradable and has a log Kow of 3.62.
Based on these results the classification of the substance is Hazardous to the Aquatic Environment, category chronic 2 (H411 Toxic to aquatic life with long lasting effects).
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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