Congo red is used as a direct dye for cotton. Write equations to show how it can

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Congo red is used as a direct dye for cotton. Write equations to show how it can be synthesized from benzidine and 1-aminonaphthalene-4-sulfonic acid.

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Organic Chemistry A Short Course

ISBN: 978-1111425562

13th edition

Authors: Harold Hart, Christopher M. Hadad, Leslie E. Craine, David J. Hart

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Question Posted: Apr 29, 2016 04:43 PM

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Congo red is used as a direct dye for cotton. Write equations to show how it can

Question:

NH NH N=N N-N so,H so,H Congo red NH H,N NH, ŠO,H benzidine I-aminonaphthalene-4-sulfonic acid

Step by Step Answer:

Benzidine can be diazotized at each amino group It can the...View the full answer

Organic Chemistry A Short Course

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