Manganese Dioxide (MnO₂) Micron Powder, Purity: 99%, Size: -200 mesh

Description

Manganese Dioxide (MnO₂) Micron Powder, Purity: 99%, Size: -200 mesh

Manganese Dioxide (MnO₂) is a black-brown powder, naturally occurring as the mineral pyrolusite, which is the most common manganese compound. Historically used as a pigment, MnO₂ remains a key material due to its stability, catalytic activity, and semiconducting properties. Its crystal structure and high purity make it suitable for both industrial and laboratory applications, particularly in electrochemical systems, ceramics, and pigments.

Technical Properties:

• Purity: 99%

• Particle Size: -200 mesh

• CAS No.: 1313-13-9

• Density: 5.43–5.46 g/cm³

• Coefficient of Expansion @ 20°C: 22 × 10⁻⁶

• Mohs Hardness: 5

• Form: Powder

• Color: Black-brown

Applications:
Manganese Dioxide Micron Powder is widely used across multiple sectors:

• Pigments & Coatings: Used in paints, inks, colorants, and glass to impart a deep brown to black color.

• Electronics & Energy Storage: Key material in dry cell batteries, lithium-ion batteries, and supercapacitors due to its catalytic and electrochemical properties.

• Catalysis: Acts as an oxidizing agent and catalyst in chemical syntheses, wastewater treatment, and organic reactions.

• Glass & Ceramics: Used in glass decolorization and as an additive in ceramics to improve mechanical strength and color properties.

• Other Uses: Applied in metallurgy, welding, and pyrotechnics for its oxidative characteristics.