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[Chemical Knowledge]：Properties and Uses of Aluminum Hydroxide

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The properties and uses
of aluminum hydroxide in the field of raw materials for chemical production
aluminum hydroxide, also known as hydrogen aluminate, is an inorganic compound with various characteristics and is widely used in the field of raw materials for chemical production. This article will discuss the properties and uses of aluminum hydroxide in detail.

1. The properties of aluminum hydroxide

1. Physical properties: Aluminum hydroxide is usually presented as a white powder with a high surface area and good adsorption properties. It is insoluble in water, but can be dissolved in an acidic environment.
2. Chemical properties: aluminum hydroxide is amphoteric hydroxide, which can react with acid or alkali. It reacts with strong acids to produce aluminum salts and water, and with strong bases to produce metaaluminates and water. In addition, aluminum hydroxide also has thermal stability, can be calcined at high temperature to produce alumina.

2. the use of aluminum hydroxide

1. flame retardant: aluminum hydroxide as a flame retardant, widely used in plastics, rubber, textiles and other materials in the production. In high temperature combustion, aluminum hydroxide decomposition heat absorption, can reduce the surface temperature of the combustion, while the release of water vapor diluted combustible gas, play a flame retardant effect.
2. Filler: Aluminum hydroxide has high surface area and good adsorption performance. It can be added to plastic, rubber and other polymer materials as a filler to improve the hardness, wear resistance and dimensional stability of the material.
3. Ceramic raw materials: aluminum hydroxide is calcined at high temperature to generate alumina, which can be used as ceramic raw materials for the production of advanced ceramic products, such as alumina ceramics, transparent ceramics, etc.
4. pharmaceutical raw materials: aluminum hydroxide in the field of medicine can be used as raw materials for the production of antacids, antidiarrheal drugs and other drugs.
5. Water treatment agent: Aluminum hydroxide has good coagulation and adsorption properties, and can be used as a water treatment agent to purify water sources and remove suspended solids and colloidal substances in water.

In short, aluminum hydroxide has a wide range of applications in the field of chemical production raw materials, which can improve product performance and quality. With the continuous development of science and technology, the application field of aluminum hydroxide will continue to expand.

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