1. Basic Raw Material and Intermediate Products

Aluminum hydroxide is a basic raw material for the production of many important inorganic salts:

Alumina Products: It is the main source of alumina needed for the production of electrolytic aluminum, and also a raw material for the preparation of various high-performance ceramics and refractory materials.

Aluminum Salts: Used in the production of aluminum sulfate (commonly used in water purification and papermaking), aluminum fluoride, and cryolite (used in the electrolytic aluminum industry).

2. Environmental Protection and Flame Retardants

This is one of the most important applications of industrial aluminum hydroxide, especially in the field of polymer materials:

Flame Retardants: Aluminum hydroxide is a halogen-free, environmentally friendly flame retardant. It absorbs a large amount of heat and releases water vapor through thermal decomposition, thereby achieving flame retardancy, smoke suppression, and filling effects. It is widely used in plastics, rubber, cables, coatings, etc.

Water Purification Agent: Aluminum hydroxide colloid has a strong adsorption capacity, capable of coagulating suspended solids and impurities in water, and is therefore used as a water purification agent (flocculator) to treat drinking water and industrial wastewater.

3. Other Specialized Applications

Mordant: In the dye industry, aluminum hydroxide colloid can adsorb dye molecules and fix them onto fibers, thus acting as a mordant.

Filler: Used in papermaking, ink and glassware manufacturing as a filler to improve product performance.