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CAS#: 21908-53-2 | Formula: HgO | Specifications: Assay 99.0 % - Min, Chloride 0.025 % Max, Insoluble in dil. HCl (%) 0.03 % Max, Iron 0.003 % Max, Nitrogen compounds (%) 0.005 % Max, Residue after reduction (%) 0.05 % Max, Sulfate 0.01 % Max