Potassium permanganate is a chemical compound with chemical formula KMnO4; specifically, a salt consisting of K+ and MnO−
4 ions (with manganese is in the +7 oxidation state). It is a purplish-black crystalline solid, that dissolves in water to give intensely pink or purple solutions.
Potassium permanganate is widely used in chemical industry and laboratories as a strong oxidizing agent, and also as a medication for dermatitis, for cleaning wounds, and general disinfection. It is on the World Health Organization’s List of Essential Medicines, the safest and most effective medicines needed in a health system. In 2000, worldwide production was estimated at 30,000 tonnes.