Do you want to know more about Acid Red 73?

Acid Red 73 also known as Acid Brilliant Scarlet GR. CAS number: 5413-75-2 Acid Red 73 is commonly used as an acid dye in the textile industry. It is often used to dye wool, silk, and nylon fabrics. It is known for its vibrant and long-lasting color, and it is generally prepared as a solution before being applied to the fabric through various dyeing techniques.

Chemical properties yellow light red powder. Soluble in water is a red solution, soluble in alcohol and fibrin, insoluble in acetone, insoluble in other organic solvents. In case of concentrated sulfuric acid, it is reddish purple, and produces reddish brown precipitate after dilution; When concentrated nitric acid is blue, it turns olive brown to orange. The aqueous solution was added with concentrated hydrochloric acid to produce dark reddish brown precipitate, and the sodium hydroxide liquid to produce dark brown precipitate. The color of copper and iron ions is dark when dyeing. Discharge is good.

Acid red 73 is a synthetic dye, and its production method mainly has the following steps:

1.Raw material preparation: using aniline compounds as starting materials, aromatic amine derivatives of dyes are prepared by synthetic reaction.

2.Compound synthesis: aromatic amine derivatives react with sodium nitrite under acidic conditions to generate nitroso aromatic amine.

3.Coupling reaction: the nitroso aromatic amine is coupled with binary heterocyclic compounds (such as naphthalene, pyridine, etc.) to generate coupling products.

4.Synthesis of stable compounds: by adjusting the reaction conditions, such as temperature, pH, etc., the reaction can reach the ideal coupling degree and generate stable coupling products.

5.Crystallization and drying: the dye solution obtained by synthesis is crystallized and dried to obtain a stable acid red 73 dye product.

Our factory specializes in the production of acid red 73,acid orange II, acid golden G, Rhodamine B, Malachite Green, Auramine O Conc and other dyes, the products are suitable for: paper ~ incense ~ egg tray