Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 226-798-2 | CAS number: 5470-11-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.21 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 2.1 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 21 ng/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.21 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.17 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.1 µg/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
Classification relevant information
Acute toxicity:
- Fish: LC50 (96 h) = 1.78 mg/L (geom. mean meas., Oncorhynchus mykiss, OECD 203)
- Aquatic Invertebrates: EC50 (48 h) = 1.1 mg test item/L (TWA, D. magna, OECD 202)
- Algae: ErC50 (72 h) = 0.21 mg/L (geom. mean meas., P. subcapitata, OECD 201)
Chronic toxicity:
- Fish: not available
- Aquatic invertebrates: not available
- Algae: ErC10 (72 h) = 0.075 mg/L (geom. mean meas., P. subcapitata, OECD 201)
Conclusion on classification
According to the harmonised classification and labelling (ATP01) approved by the European Union, this substance was classified as very toxic to aquatic life, Aquatic Acute 1 (H400).
Experimental data on the short term toxicity of 3 trophic levels were available. The lowest EC50 value was determined as 0.21 mg/L (geom. mean meas.) for algae. Chronic data are available only for algae and an ErC10 of 0.075 mg/L (geom. mean measure.) was determined. The substance is a reducing agent and is expected to be transformed rapidly in the environment via oxidation. On the basis of the available data, the substance was self-classified as Aquatic Acute 1 (H400) and Chronic 2 (H411) according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
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.
