dark red light orange. Soluble in water for gold orange, slightly soluble in alcohol. For the strong sulfuric acid in purplish Red, Red sauce for diluted. The dye solution with strong hydrochloric acid have dark purple precipitation; Add thick sodium hydroxide solution have orange brown precipitation.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
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1
|
4
|
3
|
2
|
|
1-2
|
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