Registration Dossier
Registration Dossier
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EC number: 248-948-6 | CAS number: 28299-41-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.401 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.04 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:
- 0.6 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 29.33 mg/kg food
- Assessment factor:
- 90
Additional information
PNEC freshwater, marine water and intermittent release were derived based on experimental results of standard chronic freshwater species studies.
PNEC secondary poisoning was derived based on a repeated dose human health toxicity study.
PNEC air does not need to be derived as there is no method and no hazard to air (e.g. not ozone layer depleting).
PNEC sediment (freshwater and marine) were derived based on the equilibrium partitioning method.
PNEC soil was derived based on experimental results of standard chronic soil species studies.
Conclusion on classification
Ditolyl ether is neither readily nor inherently biodegradable (2 -3% degradation), the log Kow is 4.9 and the water solubility is 2.83 mg/L. The lowest toxicity for the environmental compartment is reported for alga with ErC10 = 0.02 mg/L.
Under Regulation (EC) No 1272/2008 and ECHA Guidance on the Application of the CLP Criteria (v4.0, Nov. 2013) the substance is classified as:
- Aquatic acute1 (H400)
- Aquatic chronic 1 (H410)
Under Directive (EC) No 67/548 (EEC) the substance is classified as:
- Very toxic to aquatic organism with long-lasting effects (R50/53)
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.
