Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and then and C.I. Basic Brown 1 (with 2 moles of nitrous acid treatment with 3 moles of??Benzene-1,3-diamine?dihydrochloride derived)?coupled.
Properties and Applications
black light brown. Moderate soluble in water for violet black, soluble in ethanol for shallow violet brown. The strong sulfuric acid for blue-ray black, diluted for shallow violet brown. Dye with strong hydrochloric acid solution for red sauce; Add thick sodium hydroxide solution for sauce also red.
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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AATCC
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5
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5
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2
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3-4
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3-4
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