Preparation
3,5-Diamino-4-methylbenzenesulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product double nitriding, and Benzene-1,3-diamine (2 Moore) coupled, 3,5-Diamino-4-methylbenzenesulfonic acid (1 Moore) double nitriding, and generated three accidentally nitrogen compounds (2 Moore) coupled.
Properties and Applications
dark red light brown. Moderate soluble in water for brown, slightly soluble in alcohol. The strong sulfuric acid for olive, diluted for yellow brown. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution for dark orange brown.
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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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4-5
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3
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3
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4-5
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4-5
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