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|Section2= |Section3= |Section7= |Section8= }} Scandium(III) fluoride, ScF3, is an ionic compound. It is slightly soluble in water but dissolves in the presence of excess fluoride to form the ScF63− anion.〔 ==Production== ScF3 can be produced by reacting scandium and fluorine.〔S.A.Cotton, Scandium, Yttrium and the Lanthanides: Inorganic and Coordination Chemistry, Encyclopedia of Inorganic Chemistry, 1994, John Wiley & Sons, ISBN 0-471-93620-0.〕 It is also formed during the extraction from the ore thortveitite by the reaction of Sc2O3 with ammonium bifluoride at high temperature:〔Pradyot Patnaik, 2003, ''Handbook of Inorganic Chemicals'', McGraw-Hill Professional, ISBN 0-07-049439-8.〕 : Sc2O3 + NH4HF2 → 2 ScF3 + 6 NH4F + 3 H2O The resulting mixture contains a number of metal fluorides and this is reduced by reaction with calcium metal at high temperature.〔 Further purification steps are required to produce usable metallic scandium.〔 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 fluoride」の詳細全文を読む スポンサード リンク
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