C.I. Sulphur Orange 4 (8CI) химические свойства, назначение, производство
Подготовка
N-(4-(4-acetamido-3-nitrophenyl)-2-nitrophenyl)acetamide and sulfur or more Sodium sulfide in 200 ~ 250 ℃ calcination. Note: use N-(4-methyl-3-nitrophenyl)acetamide or Benzene-1,4-diamine of acetyl derivatives to cure, and in 200 ~ 300 ℃ under the condition of same roasting, and it can get a little nature of the same color (GP 82748).
Свойства и приложения
orange. Soluble in water for brown; In the sodium sulfide solution for yellow brown; In concentrated sulfuric acid to red light brown, dilution after red light brown, 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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Fulling
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Persperation Fastness
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Soaping
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Moderate
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Severe
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ISO
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4
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4-5
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4-5
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4-5
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5
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3-4
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C.I. Sulphur Orange 4 (8CI) препаратная продукция и сырье
сырьё
препарат