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|Section2= |Section3= |Section7= |Section8= }} Nitrosylsulfuric acid is the chemical compound with the formula NOHSO4. It is a colourless solid that is used industrially in the production of caprolactam. ==Synthesis and reactions== A typical procedure entails dissolving sodium nitrite in concentrated sulfuric acid in an ice bath:〔 (diazodization followed by treatment with nitrite)〕〔 (diazodization followed by treatment with iodide)〕 : HNO2 + H2SO4 → NOHSO4 +H2O The molecule can also be viewed as the mixed acid anhydride of sulfuric acid and nitrous acid. Alternatively, it can be prepared by the reaction of nitric acid and sulfur dioxide.〔 This procedure generates the nitrosylsulfuric acid as an intermediate en route to NOCl.〕 NOHSO4 is useful in organic chemistry to prepare diazonium salts from amines. Related NO-delivery reagents include nitrosonium tetrafluoroborate (()BF4) and nitrosyl chloride. 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「nitrosylsulfuric acid」の詳細全文を読む スポンサード リンク
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