Registration Dossier
Registration Dossier
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EC number: 223-069-0 | CAS number: 3720-16-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and an experimentally determined BCF (or if absent the measured octanol/water partition coefficient). Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC).
Short-term aquatic toxicity information is available for two trophic levels (daphnia and algae). The lowest short-term L(E)C50 is for algae: the 72-hour ErC50 is 23 mg/l. Since the EC50 is > 1mg/L the substance is not classified for short-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC.
Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on both:
a) The chronic aquatic toxicity data for algae; the 72 hr EC10 is 6.8 mg/L (based on growth rate), which results in no Chronic classification, and
b) The acute aquatic toxicity data for daphnia (EC50 = 35 mg/L) and environmental fate data (not readily biodegradable and log Kow of 2.5 -2.8), which results in a Category Chronic 3 classification,
and classifying according to the most stringent outcome.
Based on the above data, the substance is classified as R52/53 according to Directive 67/548/EEC (DSD) and Aquatic Chronic 3 (H412) according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.
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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