REACTIVE ORANGE 5

Preparation

2,4,6-Trichloro-1,3,5-triazine and 4-Hydroxy-7-(methylamino)naphthalene-2-sulfonic acid?condensation, its product and the 2-Aminobenzenesulfonic acid coupling, and then between 3-Aminobenzenesulfonic acid?condensation.

Properties and Applications

bright orange. Orange red powder. Soluble in water, not sensitive to that fights. The strong sulfuric acid for dark red sauce, precipitation, diluted into a golden brown; In nitric acid for golden yellow, yellow for diluted. The dye water solution is golden brown, add 1 Moore sodium hydroxide to deep yellow, continue to join insurance powder and warm, to light yellow, add a boric acid sodium is still light yellow. Can be used for cotton or viscose fiber dyeing and direct, the dye printing.