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Appearance Vivid, dark red, opaque, vitreous solid | ||
Tap water soluble acid red 88 jotzadope fast red a
Acid red 88 (also named Solid Red A, 2-Naphthol Red, Toyo roccelline, Fast Red A and so on) is a red azo dye. Due to its intense colour it looks almost black when solid. Instead of crystallising, it vitrifies when cooled or salted out of the solution. It has a pungent smell similar to that of benzoic acid.
Contents
Preparation
It can be obtained by azo coupling of naphthionic acid and 2-naphthol.
Uses
This compound is used in the textile industry as a dye. It can also be used for research in photocatalysis (as degradation object).
References
Acid red 88 Wikipedia(Text) CC BY-SA