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: 700-255-4 | CAS number: 31775-89-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.002 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 23 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.54 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.054 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:
- 0.108 mg/kg soil dw
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Classification related key information
Biodegradation in water: screening test: 70% (ThCO2) in 28 days (OECD 301B)
Log Kow: 3.99 (OECD 117)
Acute toxicity:
- to Fish: LC50 (96h) = 0.16 mg/L for Oryzias latipes (OECD 203)
- to Algae: ECr50 (72 h) > 0.4 mg/L for Pseudokirchneriella subcapitata (OECD 201)
- to Crustacea: EC50 (48 h) = 9 mg/L for Daphnia magna (OECD 202)
Chronic toxicity:
- to Fish: not available
- to Algae: NOEC (72h) = 0.021 mg/L for Pseudokirchneriella subcapitata (OECD 201)
- to Crustacea: not available
Classification justification according to CLP
Based on the data above, the substance is considered rapidly biodegradable. The acute aquatic toxicity LC50 is < 1 mg/L for Oryzias latipes. No long-term data are available for fish and Daphnia, the NOEC is < 0.1 mg/L for Pseudokirchneriella subcapitata. The substance needs to be classified and labelled as environmental hazard Acute Cat. 1 and Chronic Cat. 2 according to the Regulation (EC) No. 1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2ndATP).
M-factor for acute aquatic toxicity: 1
M-factor for chronic aquatic toxicity: not assignable
Classification justification according to DSD
Based on the data above, PEMB is considered to be rapidly degradable. The acute aquatic toxicity LC50 is < 1 mg/L for fish. Therefore PEMB has been classified and labelled as environmental hazard R50/R53 according to the Directive 67/548/EEC.
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.
