Registration Dossier
Registration Dossier
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EC number: 268-074-9 | CAS number: 68002-61-9 This substance is identified by SDA Substance Name: C16-C18 and C18 unsaturated alkyl trimethyl ammonium chloride and SDA Reporting Number: 11-045-00.
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.42 µg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.12 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.042 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.012 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1.1 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 68 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 6.8 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:
- 1.66 mg/kg soil dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Based on the results from the available studies with registered or structurally similar substances , Daphnia has been identified to be the most sensitive species. The short-term 48 h EC50 value based on a study with the structural similar substance, TMAC HT, was determined to be 0.0091 mg a.i./L (nominal) and the lowest long-term 21-day NOEC value based on a source study with C12-16 ADBAC in Daphnia was at 0.00415 mg/L (measured). Therefore, based on the available results, the registered substance TMAC T warrants a classification as ‘Aquatic Acute 1’ and ‘Aquatic Chronic 1; H410: Very toxic to aquatic life with long-lasting effects’ according to EU CLP criteria (Regulation 1272/2008/EC). M factors to be applied are 100 for acute and 1 for chronic toxicity.
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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