dark yellow orange. Melting point: 165 ~ 166 ℃. Soluble in water for orange, soluble in ethanol, acetone and soluble fiber element. The strong sulfuric acid for yellow, diluted for orange; In strong hydrochloric acid solution for red, and then into the orange. The dye solution to join hydrochloric acid solution for red; Add sodium hydroxide have yellow precipitation.
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Standard( Cotton )
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Light Fastness
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Persperation Fastness
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Ironing Fastness
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Soaping
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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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B
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1
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1
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2-3
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1
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