Properties and Applications
dark red light brown. Soluble in water for brown. The strong sulfuric acid for purple brown, dilute brown yellow light after precipitation. The dye solution to join strong hydrochloric acid have brown light black precipitation; Add thick sodium hydroxide solution for palm light purple.
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
|
Soaping
|
Water
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
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4-5
|
4
|
2-3
|
3-4
|
|
3-4
|
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