Aluminum oxide

Description

Aluminum(III) oxide is also called aluminum oxide. In mineral form it is called corundum and is referred to as alumina in conjunction with mining and aluminum industries. Alumina exists in hydrated forms as alumina monohydrate, Al₂O₃?H₂O and alumina trihydrate Al₂O₃?3H₂O. The geologic source of aluminum is the rock bauxite, which has a high percentage of hydrated aluminum oxide. The main minerals in bauxite are gibbsite (Al(OH)₃), diaspore (AlO(OH)), and boehmite (AlO(OH).

The Uses of Aluminum oxide

• As adsorbent, desiccant, abrasive,thickening and anti-caking agent;
• As filler for paints and varnishes;
• In manufacture of alloys,refractories, ceramic materials, electrical insulators and resistors, dental cements, glass, steel, artificial gems; in coatings for metals, etc.;
• As catalyst for organic reactions.
• As an insoluble carrier for mineral pigment, and is frequently mixed into mineral powder makeup. Because of its abrasive texture, many use these crystals to exfoliate and resurface the skin-particularly with Microdermabrasion.
• As a chromotagraphic matrix; originally called Brockmann aluminum oxide when used for this purpose.
• The minerals corundum (hardness = 9) and Alundum (obtained by fusing bauxite in an electric furnace) are used as abrasives and polishes;
• In manufacture of cosmetic products like blush, powder foundation, lipstick and facial cleanser.

What are the applications of Application

Aluminum oxide, alpha-phase is essential in protein extraction as a component in the preparation of tissues

Background

Aluminum oxide has a chemical formula Al2O3. It is amphoteric in nature, and is used in various chemical, industrial and commercial applications. It is considered an indirect additive used in food contact substances by the FDA.

Metabolism

Not Available