Preparation
N-(4-aminophenyl)acetamide diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling.
Properties and Applications
red light purple. Soluble in water chestnut, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid are chestnut, diluted into a deep red, with brown precipitation; In nitric acid solution for pink, then turned into yellow. In 10% of sodium hydroxide solution for wine red solution.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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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
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3
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5
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3
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4-5
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AATCC
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4-5
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1-2
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1-2
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1
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1
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3-4
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