Preparation
2-Amino-5-(3-nitrobenzamido)benzenesulfonic acid diazo, and 2-(4-(5-Hydroxy-3-methyl-1H-pyrazol-1-yl)phenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid?coupled, then use the method will be reduced to amino nitro.
Properties and Applications
bright orange. Soluble in water for palm light orange, slightly soluble in ethanol for golden brown. The strong sulfuric acid for green light yellow, with golden yellow diluted. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution for golden brown, precipitation.
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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4
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5
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2
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3-4
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3-4
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