Description
Perchloric Acid, 70% AR Select (ACS). Assay (HClO4: 69. 0 – 72. 0%. Chloride (Cl): max. 0. 001%. Color (APHA): max. 10. Heavy Metals (as Pb): max. 0. 0001%. Nitrogen Compounds (as N): max. 0. 001%. Residue after Ignition: max. 0. 003 %. Silicate and Phosphate (as SiO2): max. 0. 0005%.