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偏二甲肼 - Wikipedia

偏二甲肼

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偏二甲肼,或称1,1-二甲基联氨。分子式(CH3)2NNH2,英文缩写UDMH(Unsymmetric Dimethyl Hydrazine),无色易燃液体。

[编辑] 制法

  • 二甲胺亚硝化法

二甲胺与亚硝酸作用后经还原而得:

(CH3)2NH + HNO2 =(CH3)2NNO + H2O
(CH3)2NNO + Zn + HCl = (CH3)2NNH2 + ZnCl2 + H2O

  • 液态氯胺法

二甲胺和氯胺反应而得:
(CH3)2NH + ClNH2 =(CH3)2NNH2 + HCl

[编辑] 性质

熔点: -57°C
沸点: 63°C
密度:0.793
易燃,易爆,易溶于水,剧毒,致癌。
易通过皮肤吸收。

[编辑] 用途

优点在于有高比冲值,与氧化剂接触即自动着火。

  • 有机合成原料
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