Direct Blue 45 химические свойства, назначение, производство
Подготовка
3,3′-Dimethoxylbenzidine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid, and then in three alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling.
Свойства и приложения
dark blue. Soluble in water for hidden cyan, soluble in ethanol for purple. The strong sulfuric acid for green light blue, blue for red after diluted. The dye solution to join strong hydrochloric acid as dark blue; Add thick sodium hydroxide solution for purple.
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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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5
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4
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1
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4
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2-3
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AATCC
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4-5
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4-5
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2
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2-3
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2-3
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Direct Blue 45 препаратная продукция и сырье
сырьё
препарат