Registration Dossier
Registration Dossier
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EC number: 258-420-7 | CAS number: 53185-52-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 5.38 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.54 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:
- 0.49 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 following relevant key results are currently available for deriving the classification of the substance for the environment:
- Danio rerio: 96h-LC50 > 100 mg/L
- Danio rerio: 14 d-NOEC = 120 mg/L
- Daphnia magna: 48h-EC50 >100 mg/L
- Daphnia magna: 21d-NOEC = 10 mg/L
- Pseudokirchneriella subcapitata: 72h-ErC50 > 100 mg/L; 72h-NOECr = 100 mg/L
- Not readily biodegradable
- substance is highly water soluble.
Acute (short-term) aquatic hazard
As the acute E(L)C50 values are >1 mg/L, the substance does not need to be classified for this hazard category according to Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP).
Chronic (long-term) aquatic hazard
Chronic values are available for all three trophic levels. The chronic classification has to be determined with the available chronic data based on CLP Table 4.1.0 (b)(i), as the substance is not readily biodegradable.
As all the NOECs are > 1 mg/L, the substance does not need to be classified for this hazard category.
It is concluded that based on the currently available data, the substance is not classified for the environment according to CLP.
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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