What is Silica (SiO₂) Micron Powder?

Silica (SiO₂) micron powder consists of ultra-fine silicon dioxide particles known for their high thermal stability, low thermal expansion, and excellent insulating properties. It is widely used in electronics, coatings, ceramics, construction materials, and pharmaceutical applications.

Chemical Properties and CAS Number

• Chemical Formula: SiO₂
• CAS Number: 7631-86-9
• Appearance: White fine powder
• Density: Approximately 2.65 g/cm³
• Melting Point: ~1,713°C
• Solubility: Insoluble in water, soluble in hydrofluoric acid
• Chemical Stability: Highly stable under normal conditions, excellent thermal and chemical resistance

Applications of Silica Micron Powder

1. Electronics and Semiconductor Industry

Used in microelectronics, integrated circuits, and semiconductor manufacturing as an insulating material.

2. Coatings and Surface Protection

Applied in paints, coatings, and corrosion-resistant materials to enhance durability and surface finish.

3. Ceramics and Glass Manufacturing

Utilized in ceramic formulations, optical glass, and specialty coatings for improved hardness and transparency.

4. Construction and Building Materials

Employed in cement, concrete, and silica-based composites for strength enhancement and durability.

5. Pharmaceutical and Biomedical Applications

Used as an excipient in pharmaceuticals, food additives, and medical formulations due to its biocompatibility.

6. Environmental and Filtration Applications

Applied in water filtration, air purification, and pollutant removal due to its high adsorption capacity.

Pricing of Silica Micron Powder

Prices vary based on purity, particle size, synthesis method, and specific industry applications:

• Industrial Grade: Typically ranges from $50 – $300 per kilogram
• High-Purity/Specialized Grade: Prices range from $500 – $2,000 per kilogram, used in semiconductors, pharmaceuticals, and high-performance coatings.

Factors Influencing Silica Powder Prices

• Purity level and particle size distribution
• Functionalization and surface modifications
• Processing complexity and synthesis method
• Bulk order volume and market demand

Conclusion

Silica (SiO₂) micron powder is a highly versatile material with applications in electronics, coatings, ceramics, and construction. Its excellent thermal stability, chemical resistance, and electrical insulating properties make it essential for various industrial and scientific applications. Pricing depends on purity, particle specifications, and intended use.