navy blue. Soluble in water for blue purple, in ethanol for blue. The strong sulfuric acid for blue, blue or purple for diluted, with blue precipitation. Sodium hydroxide solution in aqueous solution to join a red light purple precipitation.
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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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4
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4
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3
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4
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