Manganese dioxide is a commonly used oxidant, can be widely used in various oxidation reactions, can also be used as a catalyst for some chemical reactions, Manganese dioxide is often used in batteries, pigments, synthetic polymers and other industrial fields, the specific uses are as follows:   
a. Battery: manganese dioxide can be used as a dry battery depolarizer, used in zinc carbon batteries, alkaline batteries and other dry batteries to provide power for electronic devices.
b.. Pigment: manganese dioxide can be used as a colorant to provide specific colors for glass, ceramics and other products, such as dyeing glass into purple, blue, black and so on.
c.Catalysts and oxidants: manganese dioxide has high adsorbability, can effectively catalyze and promote various chemical reactions, and plays an  important role in the synthesis industry.