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|Section2= |Section3=〕 | SpaceGroup = R-3m, No. 166 }} |Section5= |Section7= |Section8= }} Sodium azide is the inorganic compound with the formula NaN3. This colorless salt is the gas-forming component in many car airbag systems. It is used for the preparation of other azide compounds. It is an ionic substance, is highly soluble in water, and is very acutely toxic. ==Structure== Sodium azide is an ionic solid. Two crystalline forms are known, rhombohedral and hexagonal.〔 Both adopt layered structures. The azide anion is very similar in each form, being centrosymmetric with N–N distances of 1.18 Å. The ion has octahedral geometry. Each azide is linked to six Na+ centers, with three Na-N bonds to each terminal nitrogen center. 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 azide」の詳細全文を読む スポンサード リンク
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