Benzoic acid, 5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methyl]-2-hydroxy-3-methyl-, disodium salt химические свойства, назначение, производство
Подготовка
Formaldehyde?and 2-Hydroxy-3-methylbenzoic acid condensation, its product in Nitrosylsulfuric acid Disodium with 3-Hydroxynaphthalene-2,7-disulfonic acid common oxidation.
Свойства и приложения
brilliant navy blue. Soluble in water into wine red, soluble in ethanol for red wine. In concentrated sulfuric acid to dark purple, dilution for red wine. Dye aqueous solution to join sodium hydroxide as purple.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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4
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5-6
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4
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4
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5
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4
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5
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Benzoic acid, 5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methyl]-2-hydroxy-3-methyl-, disodium salt препаратная продукция и сырье
сырьё
препарат