Alumina definition. What does alumina mean? Information and translations of alumina in the most ...
Alumina definition. What does alumina mean? Information and translations of alumina in the most comprehensive dictionary definitions resource on the web. ALUMINA definition: the natural or synthetic oxide of aluminum, Al 2 O 3 , occurring in nature in a pure crystal form as corundum. In addition to its industrial applications, alumina is also utilized in the creation of refractory materials that can withstand high temperatures without melting or deforming. Alumina is defined as a chemical compound derived from aluminum ore bauxite, serving as a key raw material for the aluminum industry. Alumina, or aluminum oxide (Al2O3), is a crucial component in the production of aluminum, which is a representative metal. It is commonly called alumina and may also be called aloxide, aloxite, ALOX or alundum in various forms and applications. Definition of aluminum noun in Oxford Advanced American Dictionary. Alumina is refined from bauxite. 98; 13; 2. 13 Definition of alumina in the Definitions. 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. This material plays an important role Aluminum oxide exhibits strong bonding and high thermal stability, making it suitable for use in high-temperature applications. no. Define alumina. It appears as a white, powdery material and serves as the primary constituent in bauxite ore, which is refined through electrolysis to produce aluminum metal. alumina synonyms, alumina pronunciation, alumina translation, English dictionary definition of alumina. See examples of alumina used in a sentence. 70 at 20°C. Its unique structure allows it to effectively absorb moisture and other substances, making it particularly useful in processes such as drying gases and liquids, as well as removing impurities from water. Click for English pronunciations, examples sentences, video. Alumina, scientifically known as aluminum oxide (Al₂O₃), is a chemical compound comprising aluminum and oxygen. ; Al; 26. 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. The meaning of ALUMINA is the oxide of aluminum Al2O3 that occurs both in pure form as corundum and in hydrated forms (as in bauxite). n. See examples of aluminum used in a sentence. alum. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Meaning of alumina. Aluminum is extracted from alumina through the electrolytic reduction process, which involves the smelting of alumina. Alumina acts as a key catalyst support in various chemical reactions, enhancing the efficiency of processes like oil refining and petrochemical production. 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. → another name for aluminium oxide. The compound can exist in various crystalline forms, including alpha (α) and gamma (γ) alumina, each with distinct properties and applications. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide. Definition Activated alumina is a highly porous form of aluminum oxide that is utilized as an adsorbent and catalyst in various industrial applications. ALUMINUM definition: a silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished, occurring combined in nature in igneous rock, shale, clay, and most soil: used in alloys and for lightweight utensils, castings, airplane parts, etc. Definition of alumina noun in Oxford Advanced Learner's Dictionary. Any of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, → another name for aluminium oxide. rqnuhwlqaogevofkjclokyoxccxgftpvlsvdqqwcnuokzgumhqxy