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diamidogen 二胺 二胺 Hydrazine \ Hy" dra* zine\, n. [ Hydr- azo- - ine.] ( Chem.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, { H2N. NH2}, which is a doubled amido group, recently ( 1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also { diamide}, { amidogen}, ( or more properly { diamidogen}), etc. [ 1913 Webster]
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