What is Manganese dioxide? Manganese dioxideis a black or brown square crystal, amorphous powder or block. Melting point 535℃ (decomposition); d 5.026。 Soluble in hydrochloric acid and releasing chlorine gas, insoluble in water, acetone, nitric acid or concentrated sulfuric acid, but soluble in dilute sulfuric acid or nitric acid in the presence of hydrogen peroxide or oxalic acid. Has strong oxidizing properties. When heated to about 200℃ in hydrogen, manganese trioxide and manganese tetroxide are produced. Contact with combustible materials and organic substances is easy to ignite and burn. Explosive reaction with hydrogen peroxide. Contact with hydrogen sulfide can ignite. It can react strongly with reducing agents.
Main applications of Manganese dioxide Manganese dioxide is mainly used as a depolarizer in dry batteries. It is a good decolorant in the glass industry, which can oxidize low-priced iron salt into high-iron salt and turn blue-green glass into weak yellow. The magnetic material used to make Mn-Zn ferrite in the electronic industry. It is used as a raw material of ferromanganese alloy in the steelmaking industry and a heating agent in the casting industry. In chemistry, it is used as an oxidant (such as purple pigment synthesis), the catalyst for organic synthesis, and a desiccant for paint and ink. It is also used as a combustion improver in the match industry, a glaze for ceramics and enamels, and a raw material for manganese salts. It is also used in fireworks, water purification and iron removal, medicine, fertilizer and textile printing and dyeing. In organic synthesis, MnO2 is used as an oxidant, and its reactivity is related to its structure, preparation method and solvent polarity. Chemical properties of manganese dioxide Manganese dioxide is a tunnel structure in which the oxygen atom is on the corner of an octahedron, the manganese atom is in an octahedron, and the [MnO2] octahedron is connected in the same edge to form a single chain or a double chain. These chains and other chains are topped together to form a gap, and the octahedron is either packed in hexagonal or square. Oxidizability: Manganese dioxide is a kind of non-salt oxide, non-amphoteric oxide (it does not react with acid or alkali): it oxidizes when it meets a reducing agent. For example, manganese dioxide is put into hydrogen flow and heated to 1400K to obtain manganese oxide; Heating manganese dioxide is in ammonia gas flow to obtain brown manganese trioxide; Manganese dioxide reacts with concentrated hydrochloric acid to obtain L manganese chloride, chlorine and water. When exposed to a strong oxidant, it also shows reducibility. Suppose manganese dioxide, potassium carbonate and potassium nitrate or chlorate are mixed and melted. In that case, a dark green melt can be obtained, and potassium permanganate, a hexavalent manganese compound, can be obtained by dissolving the melt in water and cooling it. It is a strong oxidant in an acid medium. Strong oxidant, which does not burn itself but supports combustion. Do not place it with flammable materials. Price of Manganese dioxide Manganese dioxide particle size and purity will affect the product's price, and the purchase volume can also affect the cost of Manganese dioxide. A large amount of large amount will be lower. The price of Manganese dioxide can be found on our company's official website.
Manganese dioxide supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including molybdenum Silicide, nitride powder, Manganese dioxide, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Manganese dioxide, you are welcome to contact us or inquire any time.
