Properties and Applications
red light brown. Soluble in water for brown. The strong sulfuric acid for purple to blue, purple for dark red after diluted. In water solution to join hydrochloric acid for product red, and a brown precipitation; Add 10% of the strong sulfuric acid discoloration; Add sodium hydroxide solution for purple brown.
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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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2
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2-3
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1-2
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1
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2
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2
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