Tannic Acid
Pharmaceutical Grade, Food Grade, Textile Chemicals
Chemical Name: Tannic Acid
CAS No.: 1401-55-4
MF: C76H52O46
MW: 1701.2
Molecular structure:
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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.
Item | Specification |
Appearance | Yellow Powder |
Assay | ≥81% |
Loss On Drying | ≤9.0% |
Insoluble In Water | ≤0.5% |
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.
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.
储存于阴凉、干燥、通风良好的库房中。避免受光直射,远离火源与热源。
在推荐存储条件下保质期为12个月。