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|Section2= |Section7= }} Scandium(III) oxide, Sc2O3, or scandia, is a high melting rare earth oxide. It is used in the preparation of other scandium compounds as well as in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and glass composition (as a helper material). ==Structure and physical properties== Scandium(III) oxide adopts a cubic crystal structure (point group: tetrahedral (Th), space group: Ia) containing 6-coordinate metal centres.〔Wells A.F. (1984) ''Structural Inorganic Chemistry'' 5th edition Oxford Science Publications ISBN 0-19-855370-6〕 Powder diffraction analysis shows Sc-O bond distances of 2.159-2.071Å. Scandium Oxide is an insulator with a band gap of 6.0 eV. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scandium oxide」の詳細全文を読む スポンサード リンク
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