Preparation
4-(Dimethylamino)benzoyl chloride and N-methyl-N-phenylbenzenamine?(2 Moore) condensation,?Disulfonated and its product, and converted to the sodium salt.
Properties and Applications
red light blue. Soluble in water for blue, slightly soluble in ethanol to blue. The strong sulfuric acid in orange, diluted into blue. Add sodium hydroxide in aqueous solution for colorless.
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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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1
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3
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4
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3-4
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1
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4
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