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Acid Blue 9

Basic physical properties of Acid Blue 9. Acid Blue 9 (CAS: 2650-18-2) is a blue-violet powder. Soluble in water, the solubility in water (90℃) is 50g/L, the aqueous solution is greenish blue, and Acid Blue 9 is almost colorless after adding sodium hydroxide, accompanied by deep purple precipitation.Soluble in ethanol. Orange in concentrated sulfuric acid, light yellow after dilution. Acid Blue 9 is sensitive to copper and iron ions during dyeing and affects the shade.

Acid Orange II

Application: 1. Acid Orange II is mainly used for dyeing silk, wool fabrics, leather and paper. Nylon can be dyed in formic acid bath. It can also be used for dyeing nylon and wool directly. 2. The pure product can be used as food pigment and indicator 3. Acid Orange II can be used for coloring cosmetics, but not for eye, oral and lip cosmetics. Cosmetics are mainly used in bath and shampoo coloring

Acid Black 210

Acid black 210 is one of common acid dyes. Acid black 1 is a weak acid dye. Acid black 210 is suitable for dyeing silk, nylon, wool, viscose fiber and other fabrics, especially for leather dyeing. Following is Acid Black 210 basic chemical propertie