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Acid Black 1
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Acid Black 1

dye
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Quick Summary

Acid Black 1, also known as Naphthylamine Black, is a black disazo acid dye. It is synthesized through a two-step coupling process involving diazotized p-nitroaniline and diazotized aniline. This type of dye belongs to the larger class of azo dyes, which are characterized by the presence of an azo group (–N=N–) linking aryl rings. Azo dyes are the most significant group of commercial colorants due to their broad color range, good fastness, and high tinctorial strength, making them versatile for various applications.12

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2 Britannica Sources
  1. Naphthylamine Black
  2. dye - Azo dyes

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