Potassium permanganate is a chemical compound with the formula KMnO₄. It appears as dark purple or black crystals and is highly soluble in water, producing a deep purple solution. This compound is commonly used as an oxidizing agent in various chemical reactions and has applications in water treatment, where it helps remove impurities and control odors. In addition to its industrial uses, potassium permanganate is also utilized in medicine as a disinfectant and antiseptic. It can treat skin conditions like fungal infections and eczema when diluted properly. However, it should be handled with care due to its strong oxidizing properties.