This Video deals in detail with Nucleophilic addition reaction of Aldehydes & Ketones with Hyradrazine (NH2-NH2). Both Aldehydes & Ketones react in the same way with hydrazine forming corresponding hyrazones. In the process of formation of hydrazones from aldehydes & ketones they eliminate a molecule of water. Hence this process can also be called as dehydration. Hydrazine is a derivative of ammonia, where one hydrogen atom from ammonia (NH3) is replaced by a amino group (-NH2) SOME MORE INFORMATION ON HYDRAZINE (FROM WIKIPEDIA) Hydrazine (also called diazane) is an inorganic compound with the formula N2H4. It is a colourless flammable liquid with an ammonia-like odor. Hydrazine is highly toxic and dangerously unstable unless handled in solution. As of 2002, approximately 260,000 tons were manufactured annually. Hydrazine is mainly used as a foaming agent in preparing polymer foams, but significant applications also include its uses as a precursor to polymerization catalysts and pharmaceuticals. Additionally, hydrazine is used in various rocket fuels and to prepare the gas precursors used in air bags. Hydrazine is used within both nuclear and conventional electrical power plant steam cycles as an oxygen scavenger to control concentrations of dissolved oxygen in an effort to reduce corrosion.

• published: 29 Sep 2013
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