アミノオキソ(オキシラト)アミニウム

アミノオキソ(オキシラト)アミニウム 化学特性,用途語,生産方法

• 解説

  ニトロアミン，無色の光沢のある結晶．N-H1.0 Å，N-N1.43 Å，N-O1.18 Å．∠H-N-H115°，∠O-N-O130°．融点72～75 ℃(分解)．常温でも不安定で，しだいに分解するが，加熱で分解は促進される(H2OとN2Oになる)．石油エーテルやクロロホルムに不溶，ベンゼンに微溶，エタノール，エーテル，水に易溶．水溶液は微酸性(K1 2.6×10－7)を示す．塩基を加えると分解する．次亜硝酸HON=NOHの異性体．

• 製造

  ニトロカルバミン酸カリウムに氷と濃硫酸を加えて生成したものを分離・精製すると得られるニトロアミン．

• 調製方法

  A total of 25 g of potassium nitrocarbamate is introduced in small portions into a mixture of 25 ml of concentrated H3SO4 and 200 g of ice, and the solution is saturated with (NH4)SSO4. The mixture is then extracted 30 times with ether until an evaporated sample no longer evolves gas upon adding a drop of ammonia. The ether solution is put in a flask and evaporated by a dry air stream at room temperature. The residue is dissolved in a small quantity of absolute ether, and the nitramide is precipitated with ligroin. It is washed with petroleum ether and dried on clay. The lengthy ether extraction can be avoided by superimposing a layer of ether on the aqueous solution and solidifying the latter while stirring by cooling it with a Dry Ice-acetone mixture. The ether is then decanted. Just four repetitions of this process result in the transfer of 80% of the nitramide to the ether.

アミノオキソ(オキシラト)アミニウム 生産企業

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