Tannic Acid: High-Purity Natural Polyphenol (CAS 1401-55-4)

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Tannic Acid 

High-Purity Natural Polyphenol CAS 1401-55-4

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Tannic Acid

Pharmaceutical Grade, Food Grade, Textile Chemicals


Chemical Name: Tannic Acid 

CAS No.: 1401-55-4

MF: C76H52O46

MW: 1701.2

Molecular structure：


General Information :

Tannic acid is a polyphenolic organic compound widely present in plants. In terms of chemical properties, tannic acid can form insoluble complexes with proteins, alkaloids, and various metal ions due to the presence of a large number of phenolic hydroxyl groups in its molecular structure. For example, its aqueous solution can form a blue black precipitate when it comes into contact with iron salts. This characteristic of binding to proteins is the basis for many of its applications and sensory experiences.‌‌


Standard :

Item

Specification

Appearance

Yellow Powder

Assay

≥81%

Loss On Drying

≤9.0%

Insoluble In Water

≤90.5%




Applications :

Mainly used for tanning leather, it is also used in industries such as medicine, ink, printing and dyeing, rubber and metallurgy, as well as water treatment.

 



Packaging :

25kgs/drum

Storage :

Being kept in dry, clean warehouse with well ventilation.

Avoid exposing to light and heating.   

Protecting the product from leakage, rain and insolation during transportation.

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