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CAS#: 7601-90-3 | Formula: HClO4 | Specifications: Ag (ppt), Al (ppt), As (ppt), Assay 69.0 - 72.0 %, Au (ppt), Ba (ppt), Be (ppt), Bi (ppt), Ca (ppt), Cd (ppt), Chloride 0.00001 % Max, Co (ppt), Cr (ppt), Cu (ppt), Fe (ppt), Ga (ppt), Ge (ppt), Heavy Metals 0.000001 % Max, Hg (ppt), In (ppt), Iron 0.000001 % Max, K (ppt), La (ppt), Li (ppt), Mg (ppt), Mn (ppt), Mo (ppt), Na (ppt), Nb (ppt), Ni (ppt), Nitrogen compounds (%) 0.0001 % Max, Pb (ppt), Pd (ppt), Pt (ppt), Residue after ignition 0.0001 % Max, Sb (ppt), Silicate and phosphate (%) 0.00001 % Max, Sn (ppt), Sr (ppt), Sulfate 0.0001 % Max, Ta (ppt), Ti (ppt), Tl (ppt), V (ppt), W (ppt), Zn (ppt), Zr (ppt)