Preparation
4-(4-Aminophenyl)benzenamine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a single accidentally nitrogen compounds (2 Moore) coupled.
Properties and Applications
red light brown. Soluble in water for red light brown. The strong sulfuric acid to red light purple, dilute after brown precipitation. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution without change.
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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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3
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4
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2
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1-2
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1
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