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EC number: 273-769-5
CAS number: 69012-72-2
Residue from treatment of calcined zinc ore concentrates with antimony trioxide, zinc dust, lead oxide and copper sulfate. Consists primarily of zinc and a composite of metallics: cobalt, copper and lead.
Tests done according to a standard protocol, of good quality and
considered useful for setting the reference value for acute aquatic
ecotoxicity. Study used for that purpose in the EU risk assessment
process on cadmium (ECB 2008). Culture medium, test water conditions
well described and relevant the purpose of classification.
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