Acid Blue 120

Application Features

Deep purple uniform powder, soluble in water is purple, soluble in ethanol is deep blue. In a dark of sulfuric acid, a green light blue after diluted. The aqueous solution of this product with strong hydrochloric acid formation of dark precipitation; Add thick sodium hydroxide solution is Red sauce. In dyeing copper and iron son, colour and lustre is a little dark, encounter chromium ion have little influence. Discharge sex differences.

Appearance is dark purple uniform powder. It is soluble in water and purple. It is dark blue in ethanol. It is dark blue in concentrated sulfuric acid and greenish blue after dilution. The aqueous solution is concentrated with hydrochloric acid to form dark blue precipitate. The sodium solution is sauce red.

Mainly used for wool, polyamide fiber and fabric dyeing of silk. But with the direct dyes dyed wool/stick with blended fabric. Can also be used for leather, paper and biological shading.

Use condition:

1. Mainly used for dyeing and printing of wool, silk and nylon. It can also be used for coloring leather and paper.

2. The use and performance of weakly acidic dark blue GR are basically the same as those of weakly acidic navy 5R. See the specific application of weakly acidic navy 5R. They can replace each other.