Registration Dossier
Registration Dossier
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EC number: 203-490-6 | CAS number: 107-43-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1.2 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Degradation:
Biotic degradation : Mineralisation 88% during 28 d; test method OECD 301B.
Conclusion: readily biodegradable in water
Abiotic degradation (hydrolysis): no data available. The study is not needed because of ready biodegradability of the substance.
Bioaccumulation:
Bioconcentration factor (BCF): no data available. Log Kow-value (OECD method 107) was used for PBT assessment in absence of BCF.
Low potential for bioaccumulation; low octanol-water partition coefficient; log Kow is -3.1 < 3.
Conclusion on classification
The data for acute and chronic aquatic toxicity is conclusive but not sufficient for the classification of the substance according to EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.
Acute aquatic toxicity (based on the lowest of available toxicity values) is greater than 100 mg/L. The M-factor does not need to be established. Acute toxicity testing on fish was regarded scientifically unnecessary based on the acute ecotoxicity test results on daphnids and algae as well as the physico-chemical properties and environmental fate and pathways of the substance.
EC50 (D. magna, 48 h) 4335 mg/L
EC50 (D. supcapitatus, 72 h) 1199 mg/L
EC10 (D. supcapitatus, 72 h) 120.2 mg/L
NOEC (D. supcapitatus, 72 h) <312.5 mg/L
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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