Registration Dossier
Registration Dossier
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EC number: 224-675-8 | CAS number: 4443-26-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.26 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
PNEC values were derived according to information provided in the ECHA guidance document on information requirements and chemical safety assessment (Chapter R10). The PNEC value was derived using assessment factors. Short-term results for three trophic levels (fish, invertebrates and algae) are available. Long-term results are only available for algae, however these cannot be used unsupported by other long-term information on other species.
No acute toxicity was observed in fish (Danio rerio) or invertebrates (Daphnia magna) up to concentrations of 500 mg/L test substance (nominal concentrations). The most sensitive species were algae for which an ErC50 (72h) > 256 mg/L (measured concentration) and a NOEC (72h) of 25 mg/L (measured concentrations) could be determined.
As short-term results are available for the three trophic levels and only long-term results for algae are available, an assessment factor of 1000 should be applied on the lowest acute toxicity result.
PNEC aquatic: The algae ErC50 (72h) > 256 mg/L was used as start value for the PNEC calculation using an assessment factor of 1000 (AF) = 256 mg/L / 1000 = 0.26 mg/L
Conclusion on classification
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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