Preparation
2-Hydroxy-3-sulfo-5-(3-aminobenzamido)benzoic acid?diazotization, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications
blue light red. Soluble in water for red, not soluble in ethanol. In concentrated sulfuric acid for product red, red after diluted. Dye aqueous solution to join concentrated sulfuric acid as magenta; Join concentrated sodium hydroxide solution for orange.
|
Standard(cotton)
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
|
3
|
|
|
|
4-5
|
|
