REACTIVE YELLOW 86

Preparation

4,6-Diaminobenzene-1,3-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, its product diazotization, and 6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carboxamide?coupling and salting out.

Properties and Applications

brilliant green yellow. Yellow powder, in the water solubility of 30 g/L (50℃). In concentrated sulfuric acid for yellow, dilution to pale yellow, In concentrated nitric acid for yellow, dilution to pale yellow. Dye solution for light yellow, add 1 mol sodium hydroxide to yellow, continue to join insurance powder and heating, become pale yellow; Add sodium perborate into colorless. Mainly used for cotton, viscose fiber yarn and fabric of the jig dyeing or disseminated. Suitable for fast and resistance to chlorine filled fabric. Can also be used for cotton or rayon fiber direct printing, resist and discharge printing.