Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 9.05 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.905 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.318 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.033 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.003 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:
- 0.001 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Although this substance is not inherently biodegradable it is extremely soluble (> 1000 mg/l), has a low Log Pow (-2.45) and the studies at this level indicate that it will therefore not be classified for environmental toxicity.
The three acute ecotoxicity studies were conducted at varying pH’s. An analysis of the effect of hydrolysis on the ecotoxicity test concentrations was conducted and is documented in detail in Appendix 1. At pH 7 the test concentrations varied between 0.33% and 58.53% of nominal at the end of the exposure period and at pH 9 test concentrations varied between 10.65% and 97.97% of nominal at the end of the exposure period. While the hydrolysis study was not conducted at the pH’s that the ecotoxicity studies were conducted at so the results from this analysis cannot be viewed as definitive, these results strongly suggest that it is likely that algae, fish and daphnia magna were exposed to Epofloc L-1R’s breakdown product, TEPA. It is likely that some, if not all, toxicity observed in the studies was derived from the presence of TEPA.
No reliable ecotoxicity data was available for TEPA, therefore, the ecotoxicity endpoints for Epofloc L-1R were used to represent TEPA toxicity. As the ecotoxicity endpoints are expressed as Epofloc L-1R, the assessment was conducted for ‘Epofloc L-1R equivalents’ rather than TEPA to allow comparison with the ecotoxicity data. The molecular weight for Epofloc L-1R and the physical-chemical and environmental fate parameters for TEPA were used to model fate of ‘Epofloc L-1R equivalents’. The physical-chemical and environmental fate parameters for TEPA were taken from the OECD SID for Tetraethylene pentamine (UNEP, 2001).
Conclusion on classification
The studies indicate at this level (Annex VIII) that this substance is not classified for environmental 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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
