Aluminum Oxide (Al₂O₃) Nanopowder / Nanoparticles – Gamma Phase, High Purity 99.99%, Size: 5 nm

Description

Aluminum Oxide (Al₂O₃) Nanopowder / Nanoparticles – Gamma Phase, High Purity 99.99%, Size: 5 nm

• Chemical Formula: Al₂O₃

• Phase Composition: Gamma phase (γ-Al₂O₃) – Hydrophilic

• Purity: ≥99.99%

• Average Particle Size (APS): 5 nm (100% <20 nm)

• Specific Surface Area (SSA): 250–480 m²/g

• Morphology: Nearly spherical

• Color: White

• Specific Heat Capacity: 880 J/(kg·K)

• Density: 3890 kg/m³

• Bulk Density: 0.18 g/ml

• Loss on Drying: 1.9 wt%

• Loss on Ignition: 3.2 wt%

• pH: 6.5–7.5

Elemental Analysis (ppm):

• Al₂O₃: ≥99.99

• Ca: ≤1

• Fe: ≤18

• K: ≤29

• Na: ≤35

• Mn: ≤1.2

• Si: ≤16

Gamma-phase Aluminum Oxide (γ-Al₂O₃) nanoparticles are ultra-fine powders with extremely high purity, small particle size, and large surface area, making them highly reactive and suitable for advanced industrial applications. Due to their low melting temperature and high activity, they are widely used in the production of synthetic sapphire via thermal melting techniques.

The large surface area and high catalytic activity of γ-Al₂O₃ enable the formation of microporous spherical or honeycomb structures, which serve as excellent catalyst carriers. These structures are extensively applied in petroleum refining, petrochemicals, and automotive exhaust purification. Additionally, γ-Al₂O₃ is used as an analytical reagent and in advanced ceramic, electronic, and optical materials.

Applications:

• Catalysis: Catalyst and catalyst carrier in petroleum refining, petrochemical processes, and automotive exhaust treatment.

• Transparent ceramics: High-pressure sodium lamps, EP-ROM windows.

• Gemstones & single crystals: Ruby, sapphire, yttrium aluminum garnet.

• Advanced ceramics: High-strength alumina ceramics, cutting tools, high-purity crucibles, furnace tubes, C substrates, packaging materials.

• Surface finishing: Polishing materials for glass, metals, semiconductors, plastics, and tapes.

• Composite reinforcement: Enhances wear resistance in paints, rubbers, plastics, and waterproof materials.

• Electronics & optics: Vapor deposition, fluorescent materials, special glass, composite resins.

• Aerospace: Components such as aircraft wing leading edges.

Recommended Dosage:
Typically 1–5%, with optimization based on application-specific requirements.