Acid black 234 is used in the printing and dyeing of wool, silk, nylon and their blended fabrics. Acid Black 234 can be combined with Acid Orange II to make acid black ATT. Acid Black 234 is used for coloring hair, paper, anodized aluminum, soap, wood, biology, leather, medicine, and cosmetics. It can also be used to make ink.
Read MoreSend InquiryBasic 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.
Read MoreSend InquiryApplication: 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
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