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|Section2= |Section4= |Section7= |Section8= }} Nitroguanidine is an organic compound with the formula (NH2)2CNNO2. It is a colorless, crystalline solid that melts at 232 °C and decomposes at 250 °C. It is not flammable and is a low-sensitivity explosive; however, its detonation velocity is high. It is used as a propellant (air bags), fertilizer, and for other purposes. ==Manufacture== Nitroguanidine is produced commercially by a two step process starting with the reaction of calcium cyanamide with ammonium nitrate. Via the intermediacy of biguanidine, this ammonolysis step affords the ''salt'' guanidinium nitrate. In the second step, the nitrate salt is treated with sulfuric acid, a process that dehydrates the salt and forms the N-N bond.〔Thomas Güthner, Bernd Mertschenk and Bernd Schulz "Guanidine and Derivatives" in Ullmann's Encyclopedia of Industrial Chemistry, 2006, Wiley-VCH, Weinheim. 〕 :()NO3 → (NH2)2CNNO2 + H2O Nitroguanidine can also be generated by treatment of urea with ammonium nitrate. Owing to problems of reliability and safety, this process has not been commerciallized despite its attractive economic features. 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「Nitroguanidine」の詳細全文を読む スポンサード リンク
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