Preparation
4-Nitrobenzenamine diazo, and Naphthalen-1-amine?coupling, and then will the nitro reduction for amino.
Properties and Applications
blue and black. Yellow needle crystal, melting point for 159 ~ 160 ℃. Soluble in ethanol, acetone, benzene. The strong sulfuric acid to red light purple, diluted into cherry red; In nitric acid solution for red; In the thick of the same color sodium hydroxide solution, in strong hydrochloric acid for red, accompanied by precipitation.
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Standard
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Ironing Fastness
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Light Fastness
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Persperation Fastness
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Washing Fastness
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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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4
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5
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5
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5
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5
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5
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