O-Methylaniline diazo, and 7-(3-(4-Acetamidophenyl)ureido)-4-hydroxynaphthalene-2-sulfonic acid coupling.
yellow light red. Soluble in water for red orange, soluble in ethanol for orange. The strong sulfuric acid in red for product, after diluted to orange, red precipitate. The dye solution to join strong hydrochloric acid for red orange; Add thick sodium hydroxide solution for red orange
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
|
Soaping
|
Water
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
4-5
|
4
|
3-4
|
2
|
|
2
|
|