Gamma Alumina Oxide Powder

Gamma Alumina Oxide Powder

Alumina Oxide Powder
Gamma alumina oxide powder, a white, sand - shaped material with excellent fluidity, plays a crucial role in various industrial applications. It remains insoluble in both acidic and alkaline solutions, a property that makes it highly suitable for processes involving corrosive chemical environments. When exposed to air, its strong water - absorption capacity can be effectively harnessed in applications where moisture removal or control is essential, such as in industrial drying systems. Additionally, its medium particle size contributes to its utility in fields like catalyst support manufacturing, where the specific particle characteristics are vital for optimizing catalytic reactions. This powder's unique combination of properties positions it as an indispensable material across multiple industrial sectors.

Product Description

Gamma Alumina Oxide Powder (γ-Al2O3)

Product Overview

Gamma Alumina Powder (γ-Al₂O₃) is a porous, highly crystallographic form of aluminum oxide recognized for its exceptional specific surface area, optimal pore structure, and strong surface thermal stability.

Produced via advanced calcination and micro-milling processes, our Gamma Alumina exhibits superior dispersibility and high catalytic activity. It serves as an essential material across petrochemical refining, vehicle emission control (three-way catalysts), industrial gas dehydration, and precision polishing slurries.

Core Highlights

  • Purity: ≥ 99.9% / High Phase Pure
  • High BET Area: 150 - 300 m²/g
  • Customizable Pore Volume & Pore Size
  • Excellent Thermal & Hydrothermal Stability
  • Uniform Particle Size Distribution

Technical Specifications

Chemical Formula γ-Al₂O₃
Purity (Al₂O₃) ≥ 99.9% / ≥ 99.99% (High Purity Grade)
Appearance Fine White Powder
Crystal Phase Gamma Phase (≥ 95%)
BET Specific Surface Area 150 - 300 m²/g (Customizable)
Pore Volume 0.40 - 0.85 cm³/g
Average Pore Diameter 6.0 - 12.0 nm
Average Particle Size (D50) 1 - 10 μm (Sub-micron & Nano grades available)
Loss on Ignition (LOI, 1000°C) ≤ 5.0%
Impurity Limits Fe₂O₃ + SiO₂ + Na₂O ≤ 0.05%

Key Performance Features

High Catalytic Activity

Abundant surface acid sites provide exceptional performance as an active catalyst or washcoat matrix.

Controlled Porosity

Precisely engineered pore diameter and volume ensure rapid reactant diffusion and high loading capacities.

High Thermal Stability

Retains phase structure and surface area even under elevated operational temperatures.

Superior Dispersibility

Easily dispersed into aqueous or solvent systems for uniform coating, slurries, and sol-gel processing.

Primary Applications

01

Catalyst Carrier & Washcoat

Widely used as a substrate/carrier for hydrotreating, hydrogenation, steam reforming, and automotive exhaust emission control (SCR / TWC catalysts).

02

Advanced Adsorbents & Desiccants

Ideal for deep drying of gases and liquids, fluoride removal, and selective adsorption in petrochemical processing.

03

Precision Polishing Slurries

Utilized in CMP (Chemical Mechanical Planarization) slurries for semiconductor wafers, optical glass, and high-precision metals.

04

Functional Coatings & Ceramics

Applied in lithium battery separator ceramic coatings, wear-resistant coatings, and high-performance structural ceramics.

Packaging & Storage

Standard Packaging

20 kg / 25 kg moisture-proof bags with inner PE liner, or 500 kg / 1000 kg Jumbo bags. Custom drum packaging is available upon request.

Storage Conditions

Store in a cool, dry, well-ventilated warehouse. Keep bags sealed to prevent ambient moisture absorption.

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