Calcined alumina is a stable white powder, its body structure is hexagonal close-packed crystals. Its density is 3.9 g/cm, melting point is 2072C, high thermal stability, very quasi-soluble in water and acid-base solution, but at high temperature will react with strong alkali to form aluminum hydroxide dissolved.

Calcined alumina is a common inorganic compound with high hardness, wear resistance and good chemical stability. It is often used in the manufacture of high-strength ceramics abrasives and catalysts, and the specific applications are summarized below:

1, High Strength Ceramic Materials

Calcined alumina is widely used in the preparation of high-strength ceramic materials, such as cutting tools, ceramic storage heaters, thermoelectric converters, etc., due to its high hardness, high density, low brittleness, wear resistance, good insulation and other excellent properties.

2,Coating Materials

Calcined alumina powder has uniform and fine particle size and large specific surface area, suitable for coating materials as a thickener, filler and preservative, and has excellent UV resistance.

Calcined alumina is widely used in the preparation of abrasive materials such as grinding materials, grinding wheels, sandpaper and other abrasive materials due to its high hardness, anti-wear, good chemical stability and other properties, and is often used in the surface treatment of metal products.

3,Catalyst

Calcined alumina is widely used in the preparation of various catalysts, such as ultrasonic Van's oxidation, hydrodenitrogenation and catalytic cracking and other reactions because of its high specific surface area, good chemical stability and other properties.

In addition, it also has good insulating properties and high-voltage electrical properties, is an important material in the manufacture of electronic components. With the continuous development of science and technology and the continuous advancement of industrialized production, the application fields of calcined alumina will continue to expand and deepen.