3-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and N,N-dihydroxyethylaniline?coupling.
Properties and Applications
Purplish red powder, soluble in water. Water solution is red, to produce brown precipitation rare hydrochloric acid, sodium hydroxide to join after yellow. The strong sulfuric acid for olive green, blue become diluted. Used for polyamide, wool, silk dyeing and printing of content, it can also be used for leather color.
