Preparation
3,3′-Dimethoxylbenzidine double nitriding, first with Naphthalen-1-amine, and then three diazo, and 8-Hydroxynaphthalene-1,6-disulfonic acid (2 Moore) coupled.
Properties and Applications
dark green light blue. Soluble in water for blue, slightly soluble in ethanol for violet blue. The strong sulfuric acid for blue-ray green, dark after diluted precipitation; In nitric acid in red for black. The dye solution to join strong hydrochloric acid blue precipitation; Add thick sodium hydroxide solution have blue precipitation.
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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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3-4
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4
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3
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1-2
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1-2
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AATCC
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5
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4-5
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2-3
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3
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1-2
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