alumina (aluminum oxide, Al2O3)

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• alumina — Aluminum Oxide, Al2O3. Exists in a variety of forms, many with high surface areas. Aluminas are very important catalyst supports and catalyst components …   Petroleum refining glossary

• aluminum — aluminic /al yeuh min ik/, adj. /euh looh meuh neuhm/, n. 1. Chem. 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… …   Universalium

• alumina — /euh looh meuh neuh/, n. the natural or synthetic oxide of aluminum, Al2O3, occurring in nature in a pure crystal form as corundum. Also called aluminum oxide. [1780 90; < L alumin , s. of alumen ALUM1 + A4] * * * ▪ chemical compound… …   Universalium

• AL2O3 — Aluminum Oxide (aka Alumina or Sapphire) (Academic & Science » Electronics) …   Abbreviations dictionary

• Al2O3 — • aluminum oxide (alumina) …   Maritime acronyms and abbreviations

• Aluminium oxide — Alumina redirects here. For the company, see Alumina Limited. This article is about aluminium(III) oxide Al2O3. For other uses, see Aluminium oxide (disambiguation). Aluminium oxide …   Wikipedia

• alumina — SYN: aluminum oxide. hydrated a. SYN: aluminum hydroxide. * * * alu·mi·na ə lü mə nə n an oxide of aluminum Al2O3 that occurs native as corundum and in hydrated forms (as in bauxite) and is used in antacids called also aluminum oxide * * * …   Medical dictionary

• Transparent aluminum — (or aluminium) is a fictional substance from the Star Trek science fiction franchise. It was first mentioned in the 1986 feature film , in which it was described as a material that could be used to construct a waterproof enclosure for… …   Wikipedia

• alumina — [ə lo͞o′mə nə] n. [ModL < L alumen (gen. aluminis), ALUM1] an oxide of aluminum, Al2O3, present in bauxite and clay and found as different forms of corundum, including emery, sapphires, and rubies …   English World dictionary

• aluminum — A white silvery metal of very light weight; atomic no. 13, atomic wt. 26.981539. Many salts and compounds are used in medicine and dentistry. [L. alumen, alum] a. acetate used as a disinfectant by embalmers; proposed as …   Medical dictionary

• alumina — noun Etymology: New Latin, from Latin alumin , alumen alum Date: 1801 the oxide of aluminum Al2O3 occurring native as corundum and in hydrated forms (as in bauxite) …   New Collegiate Dictionary