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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 947-381-8 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.5 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 5 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.05 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.8 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.18 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:
- 0.067 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The PNEC derivation was as follows justified:
PNEC freshwater sediment:
K_(susp-water) = 0.901
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_water * 1000
= (0.901/1150)*0.5*1000
= 0.392 mg/kg wwt
= 1.80 mg/kg dw
PNEC marine water sediment:
K_(susp-water) = 0.901
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_marine water* 1000
= (0.901/1150)* 0.05 * 1000
= 0.0392 mg/kg wwt
= 0.18 mg/kg dw
PNEC soil:
K_(soil-water) = 0.201
RHO_(susp) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_marine water sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_water* 1000
= (0.201/1700)* 0.5 * 1000
= 0.059 mg/kg wwt
= 0.067 mg/kg dw
Conclusion on classification
Aquatic acute toxicity
96 h, LC50 (Brachydanio rerio): > 10000 mg/L (nominal concentration)
48 h, EC50 (Daphnia magna): > 500 mg/L (nominal concentration)
72 h, ErC50 (Pseudokirchneriella subcapitata): > 500 mg/L (nominal concentration)
Aquatic chronic toxicity
72 h, NOEC (Pseudokirchneriella subcapitata): 500 mg/L (geometric mean measured concentration)
Biodegradation: not readily biodegradable: 0 - 4 % after 28 days (% degradation DOC removal, OECD 301 A)
Partition coefficient: log Kow: -5 at 23 °C
Water solubility: 1E006 mg/L
Classification,
Labelling, and Packaging Regulation (EC) No 1272/2008
The
available experimental test data are reliable and suitable for
classification purposes under Regulation (EC) No 1272/2008. The EC50
values are maximum 500 mg/L and the substance is not readily
biodegradable. As a result the substance is not to be classified as
hazardous to the aquatic environment under Regulation (EC) No 1272/2008,
as amended for the tenth time in Regulation (EU) No 2017/776.
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.
