Aluminum Hydroxide

Aluminum Hydroxide or aluminum hydrate is an inorganic compound, white and solid, which is usually utilized in the chemical industry. It can extinguish fires through the elimination of steam when it reaches certain high-temperature points. In addition, its remarkable chemical inertness makes Aluminum Hydroxide the most favored fire retardant in diverse uses, thereby being relevant to the construction, plastic, and pharmaceutical industries, as well as with others of the industrial inventory. Aluminum Hydroxide been most practically used in various additives setting its usage through fireproofing for a century now, yet its recognition has spanned since time immemorial. Common in structure both in mineralization and in common usage around the globe, this flame retardant is one of the most dominant minerals across Earth. Bauxite, which is a mineral compound used from which Aluminum Hydroxide is procured, happens to be one of the most abundant rocks found on Earth. Chemical properties of Aluminum Hydroxide ● CAS: 21645-51-2 ● Molecular Formula: AlH3O3 ● Melting Point: Approximately 300 °C (decomposition) ● Density: 2.42 g/cm³ ● Boiling Point: 2980 °C (at 101 325 Pa) Physical Properties ● Appearance: White, odorless powder ● Solubility: Insoluble in water; slowly dissolves in strong acidic and alkaline solutions ● Reactivity: Stable under normal conditions; reacts with acids and bases ● Flowability: Easily mixed and distributed in industrial formulations, maintaining stability Application in the Construction Segment In construction, Aluminum Hydroxide is primarily used as a flame retardant in composite materials, especially in insulation panels, coatings, and certain plastics used in building applications. Its ability to release water vapor at high temperatures helps reduce fire spread, providing enhanced safety in environments at fire risk. This application is essential in fire-resistant materials, improving structural safety without compromising the physical properties of construction components. Application in Other Industries ● Plastics and Rubber: Acts as a flame retardant in products exposed to fire risks ● Pharmaceuticals: Used as an antacid in medications and as an adjuvant in certain formulations ● HI&I (Home, Industrial, and Institutional): Employed in cleaning products for its neutralizing capability ● CASE (Coatings, Adhesives, Sealants, and Elastomers): Enhances fire resistance in coatings and sealants ● Paints and Coatings: Increases fire safety in paint formulations ● Water Treatment: Serves as a coagulant for water purification in potable and wastewater treatment ● Cosmetics and Personal Care: Used as a thickening and opacifying agent in creams and lotions ● Electronics: Applied in cable materials and components for its flame-retardant properties

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