Product Name: Tannic Acid
Alias: Tannin
CAS#: 1401-55-4
Molecular Formula: C₇₆H₅₂O₄₆
Molecular Weight: 1701.18
Properties: Pale yellow or light brown amorphous powder; oxidizes and darkens when exposed to air; odorless with astringent taste. Soluble in water, ethanol, acetone, and ethyl acetate.
 

Structural Formula:

Appearance: Pale yellow or light brown powder
Storage: Store protected from light in a sealed container
Packaging: 25 kgs/drum/bag
Capacity: 4500 MT/year
Specification: 78%, 81%, 83%, 96%

Industrial Applications:
‌Ink Manufacturing‌: Its astringency and stability help improve ink quality and durability.‌
‌Printing and Dyeing Industry‌: Can serve as mordant or fixing agent, helping dyes adhere better to fibers, improving dye fastness and brightness; also enhances stain resistance of nylon carpets or yarns.‌
‌Rubber Industry‌: Used as coagulant in rubber production, helping improve rubber strength and wear resistance.‌
‌Metallurgical Industry‌: Can serve as precipitant or complexing agent for certain metal ions.‌
‌Water Treatment‌: Can be used to remove suspended particles and organic matter from water, improving water clarity and safety.
Leather Tanning Industry: One of the key raw materials for leather tanning. During the tanning process, it binds with proteins in leather to form stable cross-linked structures, making finished leather softer and more durable. This property gives it an irreplaceable position in traditional leather manufacturing.