Registration Dossier
Registration Dossier
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EC number: 310-290-3 | CAS number: 161907-80-8
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.422 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 4.224 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.042 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.52 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.152 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.057 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
All tests demonstrated that the acute EC50 and LC50 values are > 100 mg B-TTEGME/L and hence, no classification and labelling is needed.
In accordance with column 2 of REACH Annex IX (section 9.1), "long-term toxicity testing shall be proposed by the registrant if the chemical safety
assessment according to Annex I indicates the need to investigate further the effects on aquatic organisms.".
Chronic tests for further refinement of the risk assessment are not required since the risk is already appropriately characterized by the above for following reasons: B-TTEGME (1) will not be directly applied to the aquatic environment, (2) is readily biodegradable, (3) hydrolyses quickly and (4) has a low potential for bioaccumulation, i. e., the log Pow is << 3 . Therefore, it is very unlikely that B-TTEGME will be transported to the aquatic environment via STP. Furthermore, it can be assumed that the potential hazard from B-TTEGME is low since B-TTEGME is not toxic to aquatic organisms (freshwater). Based on these characteristics, B-TTEGME is not expected to cause adverse effects on aquatic organisms and hence long-term testing is not needed.
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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