potassium permanganate is an inorganic chemical compound. its chemical formula is kmno4. it contains potassium and permanganate ions. the manganese is in the +7 oxidation state. it is also known as permanganate of potash and condy's crystals. potassium permanganate is a strong oxidizing agent, which means it has a tendency to take electrons from other chemicals. it dissolves in water to give purple solutions. if it is evaporated, it makes purple-black shiny crystals. it has a sweet taste and is odorless.