The mesh number of high purity alumina typically refers to the size of the sieve mesh pores through which the powder passes. The higher the mesh number, the finer the particle size of the powder. Depending on different applications and requirements, the mesh number range of high purity alumina can vary from dozens of mesh to thousands of mesh.

Current specifications include but are not limited to 40 mesh, 80 mesh, 120 mesh, 160 mesh, 325 mesh, 600 mesh, 1250 mesh, and higher mesh sizes of nano-grade aluminum oxide.

• Chemical Formula: Al2O3

• Molecular Weight: Approximately 102

• Appearance: High purity, controllable particle size, and evenly distributed white, odorless powder

• Melting Point: 2050℃

Key Features

• High Purity: The purity of high purity alumina is typically very high, meeting the requirements of various high-end applications.

• Uniform particle size: The powder particles are evenly sized, which is beneficial for product processing and use.

• Chemical stability: Maintains stable performance under harsh conditions such as high temperatures and high pressures.

• Excellent sintering properties: easy to sinter and shape, suitable for manufacturing various ceramics and refractory materials.

Application Fields

• Luminescent Materials: Primary raw materials for rare earth tricolor phosphors, long afterglow phosphors, etc.

• Transparent ceramic: Used for fluorescent tubes in high-pressure sodium lamps, EPROM windows, etc.

• Monocrystalline Manufacturing: Used for producing monocrystalline materials such as rubies, sapphires, and yttrium aluminum garnets.

• High-strength, high-alumina ceramic: Used for manufacturing integrated circuit substrates, cutting tools, high-purity crucibles, etc.

• Abrasive: Material used for manufacturing glass, metal, semiconductor, and plastic abrasives.

• Other: Also used as active coatings, absorbents, catalysts, catalyst carriers, vacuum coating, special glass raw materials, composite materials, resin fillers, bio-ceramics, etc.

Product Type

• Powder form: Mainly used in various powder metallurgy, ceramics, abrasives, and other fields.

• Solid: Suitable for applications requiring larger volume or specific shapes.

• Pelletized: Suitable for applications requiring specific particle size distribution.

Technical Specifications

Alumina Content: ≥99.9%

2. Granularity: Offer products with various particle size ranges according to customer requirements, such as nanometer, sub-micron, etc.

Specific Surface Area: [Specific Value] m²/g

3. Bulk Density: [Specific Value] g/cm³

4. True Density: [Specific Value] g/cm³

Packaging and Storage

Packaging: Double-layer plastic bag sealed packaging, with the outer layer being either a woven plastic sack or an iron drum, ensuring the safety of the product during transportation and storage.

6. Storage: Should be stored in a dry, well-ventilated, and cool warehouse, avoiding direct sunlight and damp conditions. Keep away from fire sources and flammable materials to prevent fire and explosion accidents.