Preparation
2-Methyl-4-cyclohexylaniline diazo, and?4-Hydroxy-5-(phenylsulfonamido)naphthalene-2,7-disulfonic acid?coupling.
Properties and Applications
colourful red blue light. Soluble in water and ethanol for quality in red. The strong sulfuric acid for purple, diluted for pink. In water solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for red wine.
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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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3
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3-4
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3-4
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4-5
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