Manganese dioxide
Manganese dioxide (MnO₂) is a black or brownish black amorphous powder and one of the important inorganic compounds. It has excellent oxidizing, catalytic and adsorbing properties and is widely used in battery manufacturing (such as positive electrode materials for alkaline batteries and lithium batteries), water treatment, electronic ceramics, chemical catalysts and other fields. In addition, it is also an important raw material for the manufacture of high manganese steel, glass and glaze, and plays a key role in industrial and environmental governance.
product specification
product name: manganese dioxide
Molecular formula： MnO₂
content：30-92%
mesh size: 100-300mesh
package: 25kg, 50kg, and ton bags
characteristics: Black or brownish black amorphous powder
features
1. Strong chemical stability: manganese dioxide has high chemical stability, and it can remain stable under different environmental conditions, manganese dioxide has strong antioxidant properties, and is widely used in the industrial field.
2. Good conductivity: As a key material for batteries, especially for zinc-manganese batteries and lithium batteries, manganese dioxide has good conductivity and electrochemical properties.
3. Multiple crystal forms: manganese dioxide exists in different crystal forms, such as α, β, γ, etc. These different forms have different electrochemical properties and can meet different industrial needs.
4. Catalytic performance: In catalytic reactions, manganese dioxide can be used as a catalyst to participate in organic reactions, environmental catalysis and other processes.
5. Environmental protection applications: widely used in water treatment and air purification as a filter material or catalyst to effectively remove harmful substances in water.
6. Relatively low manufacturing cost: Compared with other high-end chemicals, manganese dioxide has a low production cost and has a certain market competitiveness.
how to select the manganese dioxide
Application areas
lithium manganese dioxide (such as lithium batteries, dry batteries): require high purity and specific particle size.
Water treatment: requires manganese dioxide to have good catalytic activity and be able to effectively remove pollutants in water.
Metallurgical industry: may require bulk manganese dioxide at a lower cost for steel production, etc.
Select the corresponding manganese dioxide type according to the application, such as battery grade, industrial grade or catalyst grade.
Purity requirements
High-purity manganese dioxide is suitable for use in batteries and electronic products, where purity of more than 99% is often required.
In industrial applications, lower purity may be allowed because they have a higher tolerance for impurities.
Particle size
Particle size affects the reaction rate and conductivity of manganese dioxide. For example, manganese dioxide used in batteries usually requires uniform and fine particles to help improve battery performance.
Manganese dioxide with different particle sizes is suitable for different applications, and the performance requirements of the target product should be considered when selecting.
Price and supply stability
Depending on the scale of demand, price and supply chain stability are also important considerations when choosing manganese dioxide.
stable suppliers can provide customers with a continuous supply of products and avoid supply interruptions caused by short-term market fluctuations.
industrial application
lithium manganese dioxide
Lithium battery: Manganese dioxide is used as one of the positive electrode materials in lithium batteries, especially in lithium cobalt oxide batteries, nickel cobalt manganese oxide batteries, etc. Manganese dioxide improves the capacity, stability and cycle life of the battery.
Metallurgical Industry
Steel Manufacturing: During the steel production process, manganese dioxide can be used as a desulfurizer and raw material to remove impurities, helping to adjust the chemical composition of steel.
Alloy Production: Manganese dioxide is used to make manganese alloys, which are often used in the production of stainless steel and other high-strength materials.
Catalyst
Organic reaction catalyst: Manganese dioxide acts as a catalyst in some organic reactions, especially in oxidation reactions, where it can promote the reaction.
Automobile exhaust catalysis: In automobile exhaust purification, manganese dioxide as a catalyst can help reduce the emission of harmful gases (such as carbon monoxide and nitrogen oxides).
Electromagnetic materials
Ceramics and battery materials: Manganese dioxide is often used to manufacture electromagnetic ceramic materials and battery materials, and is used in high-frequency electronic products, ceramic capacitors, etc.