Inorganic Analytical Perchloric Acid and Salts ACS Reagent Acids 6601 PERCHLORIC ACID PERCHLORIC ACID 50%, REAGENT (ACS) HClO₄ 100.46 7601,90,3 7601903 90,3 760190,3 7601 90 3 8/5.1/II 3-0-1 1.400 55601 63.90 500 ML 55602 150.00 2.5 L 55604 519.50 4 X 2.5 L 55624 0.00 200 L Assay 48.0-50.0% Residue after ignition 0.003% Silicate + phosphate 0.0005% Chloride 0.001% Sulfate 0.001% Nitrogen compounds 0.001% Heavy metals (as Pb) 0.0001% Iron 0.0001% Color (APHA) 10