Uses
Acid Black 234 is mainly used for dyeing wool, silk, cotton, and viscose, and can also be used for leather coloring.
Preparation
4-Amino-N-(4-aminophenyl)benzenesulfonamide double nitriding,sulfonylurea aniline in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, aniline diazo, and the above the products in alkaline conditions coupling, and then Benzene-1,3-diamine coupled.
Flammability and Explosibility
Non flammable
Properties and Applications
black. Mainly used for wool, silk, cotton and glue dyeing, also can be used for leather dyeing.
