Alumina definition. Alumina, scientifically known as aluminum oxide (Al₂O₃), is a chemical compound comprising aluminum and oxygen. Aluminum is extracted from alumina through the electrolytic reduction process, which involves the smelting of alumina. Aluminium oxide (or aluminium (III) oxide) is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. → another name for aluminium oxide. 98; 13; 2. Alumina is defined as a chemical compound derived from aluminum ore bauxite, serving as a key raw material for the aluminum industry. An oxide of aluminum, Al 2 O 3, present in bauxite and clay and found as different forms of corundum, including emery, sapphires, and rubies. [7] It Sep 24, 2024 · What is Alumina? Al2O3 is an inorganic compound consisting of aluminum and oxygen elements and is the main oxide of aluminum. ALUMINUM definition | Meaning, pronunciation, translations and examples a silvery, lightweight, easily worked, metallic chemical element that resists corrosion and is found abundantly, but only in combination: symbol, Al; at. Feb 23, 2026 · Alumina, synthetically produced aluminum oxide, Al2O3, a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminum metal. adetd dwm vrtj cuvxw nug igul dgktq hqbo wncfexux qqfwxj