We are offering mercuric iodide red extra pure hgi2 m.w. 454.40 assay 99.0-100.5% melting point 259oc substances insoluble in potassium 0.2% iodide solution chloride(cl) 0.015% foreign heavy metals, soluble mercury salts(as hg) 0.05% substances not reducible with formic acid(residue on ignition) 0.1% loss on drying 0.5% cas no: 7774-29-0 un no. 6.11638 hs code : 2827 60 90 r : 262728-33 s : 13-28.1-45 f :