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|Section2= |Section3= }} Sodium aluminium hydride or sodium alanate is an inorganic compound with the chemical formula NaAlH4. It is a white pyrophoric solid that dissolves in tetrahydrofuran (THF), but not in diethyl ether or hydrocarbons. It has been considered as an agent for the reversible storage of hydrogen and it is used as a reagent for the chemical synthesis of organic compounds. Similar to lithium aluminium hydride, it is a salt consisting of separated sodium cations and tetrahedral AlH4− anions.〔J. W. Lauher, D. Dougherty P. J. Herley "Sodium tetrahydroaluminate" Acta Cryst. 1979, volume B35, pp.1454-1456. 〕 ==Preparation and reactions== The compound is prepared from the elements under high pressures of H2 at 200 °C using triethylaluminium catalyst:〔Peter Rittmeyer, Ulrich Wietelmann "Hydrides" in Ullmann's Encyclopedia of Industrial Chemistry, 2002, Wiley-VCH, Weinheim. 〕 :Na + Al + 2 H2 → NaAlH4 As a suspension in diethyl ether, it reacts with lithium chloride to give the popular reagent lithium aluminium hydride: :LiCl + NaAlH4 → LiAlH4 + NaCl The compound reacts rapidly, even violently, with protic reagents, such as water, as described in this idealized equation: :4 H2O + NaAlH4 → "NaAl(OH)4" + 4 H2 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「Sodium aluminium hydride」の詳細全文を読む スポンサード リンク
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