Potassium permanganate, KMnO4, is a purple crystalline compound with a metallic sheen. It is soluble in water, in acetone and in methanol, but it is decomposed by ethanol. Potassium permanganate is prepared by fusing manganese dioxide with potassium hydroxide to form the potassium manganate and then electrolysing the manganate solution using iron electrodes at about 60 degC.
Potassium permanganate is a caustic alkali that oxidizes organic molecules in water. In this process, organisms and bacteria are killed, which makes it an effective antimicrobial, anti-parasitic and molluscicidal compound. it is effective against waterborne bacteria infections, external fungal infections, all ciliate infections that are not encysted, all Trematode or fluke infections, and many others.
Potassium permanganate is used as an oxidizing agent, a disinfectant, and an anti-algal agent; for metal cleaning, tan-ning, and bleaching; and as a preservative for fresh flowers and fruits.