Preparation
4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions before 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, product to diazo, and Benzene-1,3-diamine (2 Moore) coupled.
Properties and Applications
dark red light brown. Slightly soluble in water for red sauce, soluble in ethanol. In the dark for the strong sulfuric acid, diluted light for palm gray, with black precipitation. The dye solution with strong hydrochloric acid has the purple precipitation; With strong sodium hydroxide solution for red to blue light is red.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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4
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4-5
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2
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3
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4
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AATCC
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5
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5
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3-4
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2-3
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5
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