Tannic acid

Product name: Tannic acid

Character: Light yellow or light brown amorphous powder, exposed to air oxidation, dark color, odorless, astringent taste. Soluble in water, ethanol, acetone, ethyl acetate.

CAS NO.: 1401-55-4

Molecular formula: C76H52O46

Molecular weight: 1701.18

Structural formula:

To use:

1. Used in the manufacture of ferric acid ink, rust prevention of metal, mud treatment of oil drilling;

2. In terms of fabric printing and dyeing, it can be used as leather tanning agent, mordant agent, coagulant, protein agent, alkaloid precipitator;

3. In terms of medicine, it is also widely used in cosmetics as raw materials for pharmaceutical betaconic acid, pyroacid and sulfa drugs

4. In terms of fine chemicals, it is the initial raw material for producing Gallic acid series products such as ellagic acid, Gallic acid, Gallic acid esters and Pyrogallol;

5. In the field of food, it can be applied to food antioxidants, clarifiers of low-alcohol wine, bromelain food processing, etc.; It can selectively adsorb proteins from wort, reduce aldehydes of beer, and improve the abiotic stability and flavor stability of beer.

6. In the field of animal nutrition, it can replace antibiotics, reduce zinc and maintain intestinal health.