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Difference between activated aluminum hydroxide and aluminum hydroxide

Jan 30,2024

The main difference between activated aluminum hydroxide and aluminum hydroxide is their structure and properties:

Definition:

Activated aluminum hydroxide has the molecular formula AlO(OH) and the chemical name Aluminum Oxide Hydroxide and belongs to the family of aluminum hydroxides. It is a porous material with large specific surface area and porosity.

Aluminum hydroxide has the molecular formula Al(OH)3 and the chemical name Aluminum Hydroxide, it is a white powdery solid and belongs to the family of aluminum hydroxides.

Physical Properties:

Activated aluminum hydroxide has a large specific surface area and porosity, which gives it strong adsorption, as well as good ion exchange properties, chemical activity and thermal stability.

Aluminum hydroxide has good acid resistance and high temperature resistance, but is not very soluble in water.

Application Areas:

Activated aluminum hydroxide is widely used in water treatment, catalysts, unsaturated polyester resins, electrical components  and cosmetics due to its special adsorption properties.

Aluminum hydroxide, on the other hand, is widely used in flame retardants , firing aids, papermaking , ceramics  and other fields.

Chemical Properties:

Aluminum hydroxide dissolves slowly in water and in dilute acids, but is more soluble in sodium hydroxide solution.

Activated alumina is more active chemically than aluminum hydroxide, it can produce acid-base reactions with weak bases, and can also be used as an oxidizing agent to react with other compounds containing reducing substances.

Melting point and boiling point:

Activated aluminum oxide has a melting point of 2054°C and a boiling point of 2980°C.3

Aluminum hydroxide does not explicitly mention a melting and boiling point, but it is usually considered an amphoteric hydroxide, which means that it can be either solid or liquid under certain conditions.

Other Properties:

Activated aluminum oxide is a highly hard compound that can be used as a raw material for refractories.

Aluminum hydroxide is sometimes referred to as aluminate because of its ability to react with acids or strong bases to form salts and water.

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Frequently asked 1uestions about aluminum hydroxide flame retardant

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Jan 30,2024