Reactive Red 1

Preparation

4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and 2,4,6-Trichloro-1,3,5-triazine condensation, 2-Aminobenzenesulfonic acid diazo, and condensation products coupled, then salting-out.

Properties and Applications

colourful red blue light. Sauce red powder. The strong sulfuric acid for purple, diluted into colourful red; In nitric acid for red, diluted is still red. The dye solution for red, with 1 Moore sodium hydroxide solution into orange red, continue to join insurance powder and warm, into a light yellow, plus people had boric acid sodium is still light yellow. Mainly used for cotton, viscose, wool, silk dyeing, suitable for contaminated and roll dye.