Registration Dossier
Registration Dossier
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EC number: 201-202-3 | CAS number: 79-39-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 2 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 10 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.2 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 9.95 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 8.95 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.895 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:
- 0.617 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The data requirements with regard to REACH legislation, annex VII – X, are fulfilled.
According to internationally accepted criteria as outlined in the TGD (ECHA guidance on information requirements and chemical safety assessment, PART R.10, p19) and with regard to the studies described above, long-term results of two trophic levels are represented. There is no major deviation (factor 2) in the magnitude of the acute aquatic toxicity between fish, daphnids and algae therefore not justifying the determination of a most sensitive species.
PNECs for sediment and soil have been calculated with the equilibrium partitioning method using EUSES 2.1.
The following data have been taken into account for the calculation:
Molecular weight [g/mol] |
85.1 |
Melting point [°C] |
110 |
Boiling point [°C] |
235 |
Vapour pressure [hPa], 20°C |
0.15 |
Water solubility [mg/L], 25°C |
10000 |
Log Kow |
-0.15 |
Koc (Kow method) L/kg |
8.75 |
PNEC aqua, freshwater [mg/L] |
2.0 |
Conclusion on classification
With regard to the environmental data presented on biodegradation and acute as well as chronic aquatic toxicity methacrylamide has not to be classified as hazardous to the environment acc. EU Regulation Nr. 1272/2008 (CLP-Regulation)
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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