Preparation
3,7-diaminobiphenyl sulfone-4,6-disulfonic acid double nitriding, and N-phenyl-2-naphthylamine (2 Moore) coupled.
Properties and Applications
red light navy blue. Soluble in water for blue, soluble in ethanol for violet blue. The strong sulfuric acid to purplish red color, diluted into yellowish gray. In aqueous solution is to add strong hydrochloric acid have dark precipitation, add sodium hydroxide to blue.
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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4
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4
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4
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