Tannic Acid CAS 1401-55-4

Products Name

Tannic Acid

Tannic Acid Details
Chemical Name: Tannic Acid

CAS No.: 1401-55-4

Molecular Formula: C76H52O46

Molecular Weight: 1701.2

Appearance: Light yellow powder

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Tannic Acid Typical Properties


Light yellow powder


Melting Point
218 °C(lit.)

1.2965 (rough estimate)

Brand name
Fousi chemical

What Is Tannic Acid
Tannic acid is a tannin derived from gallnut. It is yellow or light brown light amorphous powder or scales; odorless, with a special smell and astringent taste. Soluble in water and ethanol, easily soluble in glycerin, almost insoluble in ether, chloroform or benzene. When the aqueous solution meets the iron salt solution, it turns blue and black, and the addition of sodium sulfite can delay the discoloration.
Tannic Acid Usage

Used as a raw material for gallic acid and pyrogallic acid.
Mordant. Used for fixing or dyeing fibers, as a basic dye.
Ore flotation agent. Smelting of rare metals, extracting germanium from lead-zinc ore or smoke, extracting rare metals such as thorium and polonium from solution, and extracting lead and copper from chalcopyrite.
Convert paint. Anti-corrosion of aluminum and its alloy plate, steel, copper, zinc, etc.
Food additives. Such as food antioxidants, beverage clarifiers, high-grade inks and inks.
Drilling mud thinner.
Synergist. Synthesis of 2,4-diamino-5- (3,4,5-trimethoprim) (trimethoprimam), referred to as TMP or sulfonamide synergist.

Tannic Acid Packaging and Shipping 
Packing: 25 kg / bag
Tannic Acid Storage
Stored in a cool dry and ventilated warehouse


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