ACID YELLOW 65

Preparation

2-(4-Aminophenylamino)-5-nitrobenzenesulfonic acid diazotization, coupling with o-Cresol, and then use Benzenesulfonyl chloride?phenol hydroxyl esterified.

Properties and Applications

light yellow dark red. Dark red light yellow powder. Soluble in water for yellow, soluble in ethanol, slightly soluble in acetone and toluene. The strong sulfuric acid dyes for purple. Discharge sex medium, in light of copper (micro have change, iron ion in the dark colored. Mainly used for wool, silk, polyamide fiber and wool blended fabric dyeing, printing, silk directly to discharge printing color. Can also be used for leather and soap color.