Sesquioxide

Sesquioxide

A sesquioxide is an oxide containing three atoms of oxygen with two atoms (or radicals) of another element. For example, aluminium oxide (aluminium2oxygen3) is a sesquioxide. Many sesquioxides contain the metal in the +3 oxidation state and the oxide ion e.g. Al2O3,La2O3. The alkali metal sesquioxides are exceptions and contain both peroxide, ( O22−) and superoxide, (O2−) ions, e.g. Rb2O3 is formulated [(Rb+)4(O22−)(O2−)2] . [Greenwood&Earnshaw]

Sesquioxidizing, meaning the creation of a sesquioxide, is the highest scoring word that would fit on a Scrabble board. [The Scrabble Omnibus, Gyles Brandreth, ISBN 0-00-218081-2] The word first occurred in 1976 in Josepha Heifetz Byrne's "Mrs. Byrne's Dictionary of Unusual, Obscure, and Preposterous Words" (ISBN 0806504986), though the Oxford English Dictionary already listed sesquioxidized and sesquioxidation. [Keith W. Smith [http://cross-tables.com/download/totalscrabble.pdf Total scrabble] , page 67] . One could theoretically score 2044 points in a single move, when otherwise only words from the official Scrabble word list are used. [ [http://www.scrabulizer.com/blog/post/3 Record for the Highest Scoring Scrabble Move] at scrabulizer.com, accessed 2008-05-30 ]

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  • Sesquioxide — sind chemische Verbindungen, genauer Oxide, die ein Verhältnis des Metalls oder Halbmetalls zu Sauerstoff von 1 : 1,5 aufweisen (sesqui = „eineinhalbfach“). Sesquioxide mit einer stöchiometrisch genauen Zusammensetzung haben daher die… …   Deutsch Wikipedia

  • Sesquioxide — Ses qui*ox ide, n. [Sesqui + oxide.] (Chem.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, {Al2O3} is a sesquioxide. [1913 Webster] …   The Collaborative International Dictionary of English

  • sesquioxide — [ses΄kwē äk′sīd΄] n. [ SESQUI + OXIDE] an oxide in which three atoms or equivalents of oxygen are combined with two of some other element or radical …   English World dictionary

  • sesquioxide — seskvioksidas statusas T sritis chemija formulė M₂O₃ atitikmenys: angl. sesquioxide rus. сесквиоксид …   Chemijos terminų aiškinamasis žodynas

  • sesquioxide — |seskwē+ noun Etymology: sesqui + oxide : an oxide containing three atoms of oxygen combined with two of the other constituent in the molecule ferric oxide is a sesquioxide …   Useful english dictionary

  • sesquioxide — /ses kwee ok suyd, sid/, n. Chem. an oxide containing three atoms of oxygen and two of another element, as aluminum oxide, Al2O3. [1825 35; SESQUI + OXIDE] * * * …   Universalium

  • sesquioxide — noun Any oxide containing three oxygen atoms for every two atoms of another element …   Wiktionary

  • sesquioxide —   the oxides of iron and aluminium that occur in soils …   Geography glossary

  • sesquioxide — ses·qui·ox·ide .ses kwē äk .sīd n an oxide containing three atoms of oxygen combined with two of the other constituent in the molecule * * * ses·qui·ox·ide (ses″kwe okґsid) a compound of three parts of oxygen with two of another element …   Medical dictionary

  • sesquioxide — ses·qui·oxide …   English syllables

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