induline

[in-dyuh-leen, -lin, in-dl-een]

noun

1. any of a large class of dyes yielding colors similar to indigo.

induline

/ ˈɪndjʊlɪn, ˈɪndjʊˌlaɪn /

noun

1. any of a class of blue dyes obtained from aniline and aminoazobenzene

Word History and Origins

Origin of induline¹

First recorded in 1880–85; ind- + -ule + -ine ²

Word History and Origins

Origin of induline¹

C19: from _indigo + _-ule + _-ine ²

Example Sentences

Induline, in′dū-lin, n. a name of various coal-tar colours used in dyeing cotton wool and silk dark-blue colours resembling indigo.

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The following is a list of the more important basic colours derived from coal-tar:— Red.—Magenta, safranine, rhodamine, pyronine red, rhoduline red, rosaze�n, induline scarlet.

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Later, viz. in 1883, the manufacture was improved by Otto Witt and E. Thomas, and the dye, under the old name of “induline,” is now largely manufactured by first preparing aniline yellow and then heating this with aniline and aniline salt.

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It was prepared in precisely the same way as induline was prepared from aniline yellow.

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Just as aniline yellow when heated with aniline and an aniline salt gives induline, so amido-azonaphthalene when heated with naphthylamine and a salt of this base gives Magdala red.

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