| hydrazine | <chemistry> 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, colourless gas, with a peculiar, irritating odour. As a base it forms distinct salts. Synonym: diamide, amidogen, (or more properly diamidogen), etc. Origin: Hydr- + azo- + -ine. Source: Websters Dictionary (01 Mar 1998) |
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| hydrazine yellow | <chemistry> An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids. Origin: Tartaric + hydrazine. Source: Websters Dictionary (01 Mar 1998) |