Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 41 Salts of oxometallic or peroxometallic acids 28 41 61 - - Potassium permanganate 28 41 61 00 - - Potassium permanganate Commodity Code Description 28 41 61 00 000 - - Potassium permanganate