Preparation
2-Amino-4-chlorophenol diazotization, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications
red light navy blue. Black powder. Soluble in water for magenta, slightly soluble in alcohol. In concentrated sulfuric acid for dark blue, dilution after magenta. Its aqueous solution and concentrated hydrochloric acid into product red; With strong caustic into bordeaux red. In the dyeing of copper, iron, lead ion sensitive. Suitable for wool and silk dyeing.
|
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
4-5
|
5-6
|
4-5
|
|
5
|
5
|
5
|
