ACID BLACK 52

Chemical properties

black powder

What are the applications of Application

Palatine Fast Black Wan is a useful azo dye for proteomics research also known as acid black 52

Preparation

4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol matches, will result in aqueous solution with formic acid chromium common heating, in 115 ℃ keep 2 hours, and then into the same batch of have no complexation half of the dyes, and sodium hydroxide move into alkaline, drying. The component of product is about 2 to 3 Moore single atoms chromium azo dyes.

Properties and Applications

black. Dark brown powder. A red light black soluble in water, soluble in ethanol and soluble fiber element, slightly soluble in acetone, insoluble in other organic solvents. Meet strong sulfuric acid is dark, dilute to create black precipitation; Meet nitric acid was yellow brown solution; In a rare dark-purple sodium hydroxide solution. Used for wool, polyamide, silk dyeing and printing, also used in leather and electrochemical dyeing aluminum shading.