Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand coupled the product of three, and then o-Cresol coupling.
Properties and Applications
blue light green. Soluble in water for SAP green, soluble in ethanol are blue-green. The strong sulfuric acid for purple, for gray after diluted. The dye solution to join strong hydrochloric acid have Gray light purple precipitation; Add thick dark gray precipitation sodium hydroxide solution.
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
Fading
|
Stain
|
Fading
|
Stain
|
AATCC
|
3
|
3-4
|
1-2
|
1-2
|
|
|
|