hydroxylamine


From The Collaborative International Dictionary of English v.0.48:

Hydroxylamine \Hy*drox`yl*am"ine\, n. [Hydroxyl + amine.]
   (Chem.)
   A nitrogenous, organic base, NH2.OH, resembling ammonia,
   and produced by a modified reduction of nitric acid. It is
   usually obtained as a volatile, unstable solution in water.
   It acts as a strong reducing agent.
   [1913 Webster]
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