Properties and Applications
red. Soluble in water is cherry red, slightly soluble in ethanol (the pale of the red light purple), almost insoluble in acetone. Strong sulfuric acid in purple, will have its dilution cherry red (produced orange precipitation); Meet nitric acid for yellow light red. Its water solution with hydrochloric acid for yellow orange; Add thick sodium hydroxide solution for orange light brown. Used for wool, silk dyeing, can also be used for the feathers, paper, soap, leather, wood, cosmetics and pharmaceutical color.
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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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3
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2-3
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3
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2
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1-2
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2-3
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