Registration Dossier
Registration Dossier
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EC number: 273-760-6 | CAS number: 69012-63-1 By-product of refining of zinc ores consisting primarily of zinc, lead and iron.
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
N, R52 -53, based on the algae test according to OECD 201 resulted in an EC50 value for Waelz zinc oxide of 12.3mg/l for specific growth rate, and 1.8mg/l for "yield" ("yield" is "biomasse-Ertrag"). According to TGD part 2, (2003), the endpoint specific growth rate is used for the classification.
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