Properties and Applications
deep green. Soluble in hot water for purple, soluble in ethanol for red light purple. In concentrated sulfuric acid for brown light red, purple brown after dilution precipitation; In concentrated nitric acid for red solution, and quickly decolorizing. Dye aqueous solution to join concentrated hydrochloric acid for dark purple precipitation; Join concentrated sodium hydroxide solution for brown precipitation.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
4
|
3-4
|
4-5
|
3
|
3-4
|
4-5
|
5
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