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Reactive Grade Alumina

Reactive Grade Alumina

Reactive grade alumina, also known as activated alumina, is a type of high-purity, high-surface-area alumina material that has been specially processed to increase its reactivity and adsorption properties. It is made by subjecting high-purity aluminum hydroxide to a high-temperature calcination process, which removes the water and other impurities and leaves behind a highly porous, crystalline alumina structure.

Reactive grade alumina is known for its exceptional adsorption and catalytic properties, making it a popular choice for use in a range of industrial applications. Its high surface area and porosity make it ideal for use as a desiccant, catalyst, or adsorbent in processes such as gas purification, water treatment, and chemical synthesis.

Reactive grade alumina is also highly resistant to high temperatures, corrosion, and chemical attack, making it ideal for use in harsh environments where other materials would quickly degrade. It is available in a range of particle sizes and shapes, including powders, beads, and pellets, making it easy to integrate into different processes and systems.

Overall, reactive grade alumina is a highly versatile and effective material that offers exceptional performance and durability in a range of industrial applications. Its unique properties and processing make it well-suited for use in industries such as petrochemicals, environmental remediation, and manufacturing, where high-quality, reliable adsorbents and catalysts are essential.


Catalog No. CERAMICS
Size Customized
Material Al2O3
Purity 95% 99% 99.7%
Density 3.8~3.9 g/cm3


At CG Material, we offer high quality Reactive Grade Alumina with exceptional purity and precision in terms of size. Our products range in diameter from 1mm to 100mm and have a purity level of up to 99.8%. We also provide custom manufacturing options for special shapes to meet specific needs.


Reactive Grade Alumina Specifications

MR23 MR32 MR42 MR52 MR70
Al2O3 (%) ≈99.8 ≈99.8 ≈99.8 ≈99.8 ≈99.8
Na2O (%) total ≤0.1 ≤0.1 ≤0.1 ≤0.1 ≤0.1
CaO (%) ≈0.02 ≈0.03 ≈0.02 ≈0.04 ≈0.02
Fe2O3(%) ≈0.02 ≈0.03 ≈0.02 ≈0.03 ≈0.02
SiO2 (%) ≈0.025 ≈0.05 ≈0.05 ≈0.01 ≈0.08
MgO ≈0.08 ≈0.06
αAl2O3 (%) ≥95 ≥95
Loss on Ignition (%) ≤0.2 ≤0.23
Specific Surface Area (m2/g) 0.2-0.5 3.5-5 2-3 6-9 6-10
Primary Crystal Size (µm) ≈3 ≈1.5
Bulk Denisty (kg/m3) ≈600 ≈1000 ≈600 ≈1100 ≈900
Green Density (50 MPa) g/cm3 ≈2.16-2.30 ≈2.45 2.1-2.3 2.15-2.38
Fired Denisty (1600oC, 2h) g/cm3 ≈3.4 3.0-3.3 3.74-3.95
Water Adsorption (ml/100g) ≈18 ≈13 ≈20

Reactive Grade Alumina Applications


-Structural Ceramics

-Technical Ceramics


-Body and Vehicle Armor



-Metal Preparation










We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.



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