ACID VIOLET 7 CAS# 4321-69-1

Acid red 6B acid red 6B is a kind of acid dyestuff. It is commonly used as the colorant in chemical raw materials and the dye in leather chemicals. It is a deep red powder at room temperature. Water soluble in blue and red to magenta, slightly soluble in ethanol, acetone and soluble fiber, insoluble in other organic solvents. In the case of concentrated sulfuric acid, it is blue and red, and it is bright red when diluted, and then turns orange when the nitric acid is scarlet. The aqueous solution with concentrated hydrochloric acid is red, and the solution of sodium hydroxide is orange brown. In the dyeing, copper and iron ions have a slight blue and dark color, while the latter is slightly shallow and has little effect on chromium ion. Good evenness. Diazotization of -aminoacetanilide is the product of acid magenta 6B with the product of acetylation of H acid. It is mainly used for dyeing wool, silk and nylon in acid bath. It can also be used as the color of soap, wood and cosmetics. Store in a cool and dry place, avoid the sun, protect the heat.