Benzoic acid, 3-[[4-[(1,8-dihydroxy-4-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-2(or 6)-hydroxy-, disodium salt химические свойства, назначение, производство
Подготовка
3-Amino-2-hydroxybenzoic acid?diazo, and Naphthalen-1-amine coupling, its product to diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid coupling.
Свойства и приложения
dark blue light green. Soluble in water for dark, and adequate soluble in ethanol to blue. The strong sulfuric acid in turquoise, diluted into purple. In water solution to join strong hydrochloric acid for violet black; Add thick sodium hydroxide solution for dark.
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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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2
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5
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5
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4-5
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5
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Benzoic acid, 3-[[4-[(1,8-dihydroxy-4-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-2(or 6)-hydroxy-, disodium salt препаратная продукция и сырье
сырьё
препарат