Registration Dossier
Registration Dossier
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EC number: 942-590-0 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.045 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.449 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.004 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 30.86 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.037 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.004 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:
- 0.007 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Data available show that PWH/ammonium and PWH/sodium saltsare similar. The two substances are different only in the salification, in fact the paraffinic chain with one sulphonic group, three Cl atoms is always in common.
For the ecotoxicological information, the read across between PWH/ammonium and PWH/sodium salt is valid.
The read across justification is attached on section 13 of the dossier.
Conclusion on classification
According to Regulation EC 1272/2008 and related amendment II EC 286/2011, the substance has to be classified for acute aquatic toxicity if 96 hr LC50 (for fish)≤ 1 mg/l and/or 48 hr EC50 (for crustacea)≤ 1 mg/l and/or 72 or 96 hr ErC50 (for algae or other aquatic plants) ≤ 1 mg/l. Since EC50 daphnia = 44.9 mg/l the substance has not to be classified for acute aquatic toxicity. Adequate chronic toxicity data are not available, but Category Chronic 1 is not warrated because the substance is rapidly degradable and the log Kow<< 4
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.
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