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indophenol

[ in-doh-fee-nawl, -nol ]

noun

, Chemistry.
  1. a quinonimine derivative that is the parent substance of the blue and green indophenol dyes.
  2. any derivative of this compound.
  3. any of various related dyes.


indophenol

/ ˌɪndəʊˈfiːnɒl /

noun

  1. a derivative of quinonimine. Formula: HOC 6 H 4 NC 6 H 4 O
  2. any of a class of derivatives of this compound, esp one of the blue or green dyes that are used for wool and cotton
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of indophenol1

First recorded in 1890–95; indo- + phenol
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Word History and Origins

Origin of indophenol1

C19: from indigo + phenol
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Example Sentences

Closely related to this group is a colouring-matter introduced by Köchlin and Witt in 1881 under the name of “indophenol.”

But while these intermediate blues resulting from the oxidation of a diamine in the presence of another amine are unstable, and pass readily into red azines, indophenol is stable, and can be used for dyeing and printing in the same way as indigo.

Indophenol discovered by Köchlin and Witt.

It has been proposed to employ the dye-stuff indophenol in conjunction with indigo, in which case the method of making the vat is with zinc, bisulphite of soda, caustic soda and ammonia as last described, only in place of using all indigo a mixture of 22 lb. indigo and 7½ lb. indophenol is used.

Durand, Huguenin & Co. have introduced the use of Indophenol along with indigo in wool dyeing.

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