Acid Violet 48

Preparation

1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2,4,6-Trimethylbenzenamine?condensation, and then to 4-Tert-Octylphenol?and second condensation, and hair smoke sulphonated sulfuric acid.

Properties and Applications

the appearance of the Dark reddish brown powder, soluble point 100 ℃, λ Max = 592 nm (water), soluble in water, in 20 ℃ water solubility of 8 g/L. In strong hydrochloric acid for product red, diluted into light purple, have precipitation; In nitric acid for coffee. Its water solution for product red, add hydrochloric acid for sauce and after red precipitate; After add sodium hydroxide and have better light precipitation. Levelness medium, white sex is not good. Used for wool, silk, polyamide fiber and its blended fabric dyeing and printing, but also can be used for leather color.