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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.
Mean erythema score at 24 and 48 hours for NiSO4 were 1.1
and 1.0, respectively
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