3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then diazo, and 4-Nitrobenzene-1,3-diamine coupling.
Properties and Applications
brown light grey. Soluble in water for violet to violet black, soluble in ethanol. The strong sulfuric acid for gray and blue-ray gray, diluted gray light purple for. The dye solution to join strong hydrochloric acid for galleries to violet, precipitation; Add thick, hydrogen for violet solution oxidation to violet black, precipitation.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
3
|
5
|
4-5
|
2
|
|
2-3
|
|
