Preparation
5-Amino-2-hydroxybenzoic acid diazotization,and where did 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, and its product (2 Moore) diazotization, and Benzene-1,3-diamine coupling.
Properties and Applications
brown. Soluble in water, soluble in ethanol. In concentrated sulfuric acid for the faint blue, blue precipitation after dilution. Dye aqueous solution to join concentrated hydrochloric acid blue precipitation; Join concentrated sodium hydroxide solution have precipitation.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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3-4
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5
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4
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5
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2-3
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2
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