Acid Red 87

Application Features

Soluble in water and ethanol with fluorescent blue light is yellowish red solution. Meet strong sulfuric acid yellow, it will be diluted yellow light red precipitate generated. Dyeing copper ions in the blue colour and lustre; Iron ion colour and lustre in the dark blue. Discharge the gender is good.

Appearance is orange-red powder. It is soluble in water and ethanol with a deep red solution with yellow-green fluorescence. It is yellow when concentrated sulfuric acid, and yellow-red red precipitate after dilution.

Mainly used in red ink and red pencils, only comfortable carpet dyeing. After refining can be used as medicine and cosmetics of coloring. Can also be used in leather dyeing. The aluminum salt can be used as organic pigments.

Acid Red 87 Use condition:

1. Weak Acid Red A, also known as Acid Red A, commonly known as Acid Ink Red, is mainly used for red ink and red pencil. It can be used as a coloring agent for medicines and cosmetics after finishing. It can be used for dyeing leather. Poor, rarely used in the printing and dyeing of textiles, only suitable for the dyeing of carpets.

2. Wool dyeing is carried out in a weak acid bath, the pH of the dyeing solution is adjusted to 3.5~5.5, and the Canadian dollar powder is used as a retarding agent to improve leveling; silk and nylon dyeing can be carried out in acetic acid or formic acid bath. When the fibers are dyed in the same bath, the cellulose fibers are slightly stained.

3. When dyeing, the copper ion is slightly blue in color, and the iron ion is blue and dark.