Silicon Dioxide (SiO₂) Micron Powder Purity: 99.9%, Size: -325 mesh

Description

Silicon Dioxide (SiO₂) Micron Powder Purity: 99.9%, Size: -325 mesh

Silicon Dioxide (SiO₂) Micron Powder is a high-purity, fine white powder engineered for advanced industrial and research applications. With a purity level of 99.9% and a fine particle size distribution (-325 mesh), this powder delivers excellent stability, brightness, and uniformity. Its outstanding chemical resistance, high dielectric strength, and low thermal expansion make it an essential material across electronics, ceramics, and coatings industries.

The powder is processed to achieve high whiteness, high brightness, and freedom from organic or harmful impurities, ensuring reliable performance in high-precision and high-tech applications.

Technical Properties

Purity: 99.9%
Particle Size: -325 mesh

Chemical Composition (Weight %):

• SiO₂: 99.20 – 99.70

• Fe₂O₃: 0.01 – 0.12

• Al₂O₃: 0.30 – 0.80

• TiO₂: 0.005 – 0.010

• CaO: 0.01 – 0.05

• MgO: 0.005 – 0.015

• Na₂O: 0.010 – 0.030

• K₂O: 0.005 – 0.030

• L.O.I.: 0.10 – 0.15

Particle Size Distribution (ZETA SIZER):

• D10: 1.0 – 3.5 µm

• D50: 3.0 – 7.0 µm

• D90: 8.0 – 14.0 µm

• D97: 14.0 – 20.0 µm

Appearance: White powder
Characteristics: High purity, high whiteness, high brightness, no harmful contaminants

Applications

Silicon Dioxide (SiO₂) Micron Powder (-325 mesh, 99.9%) is widely used in:

• Electronics & Semiconductors: Dielectric layers, insulating materials, and thin/thick film applications.

• Ceramics & Glass: Enhances thermal stability, hardness, and transparency.

• Paints, Coatings & Pigments: Provides brightness, UV resistance, and wear resistance.

• Polymers & Composites: Improves mechanical strength, durability, and chemical resistance.

• Catalysis & Adsorbents: Used as a support material in catalysis and environmental applications.

• Specialty Fillers: Applied in adhesives, sealants, and construction materials for improved performance.