phenylhydrazine

[fen-l-hahy-druh-zeen, -zin, feen-]

noun

Chemistry.

1. a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.

Word History and Origins

Origin of phenylhydrazine¹

1895–1900; < German Phenylhydrazin; phenyl, hydrazine

Example Sentences

It does not react with sodium or with phenylhydrazine, but yields dye-stuffs with isatin and phenanthrenequinone.

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These bases were discovered in 1876 by Emil Fischer, and they are known as hydrazines, the particular compound thus obtained from aniline being phenylhydrazine.

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The latter is obtained by the action of a sulpho-acid of phenylhydrazine on dioxytartaric acid, and is a yellow dye, which is of special interest on account of its extraordinary fastness towards light.

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By this method the manufacture of phenylhydrazine and other hydrazines is effected on a large scale—all kinds of amido-compounds and their sulpho-acids can be diazotised and reduced to their hydrazines.

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Antipyrine introduced by L. Knorr, leading to manufacture of phenylhydrazine.

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