Preparation
4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and 1-(4-Aminophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling, and then make the light gasification.
Properties and Applications
dark red. Soluble in water for red light brown, and adequate soluble in alcohol. For the strong sulfuric acid in orange, yellow for red after diluted. The dye solution to join strong sodium hydroxide solution for orange brown; Join strong hydrochloric acid is palm light orange, 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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5
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6
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4
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4-5
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AATCC
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5
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4
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6-7
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4-5
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5
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