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Process: The raw material is extracted using non-toxic solvents, after several purification steps, the concentration is spray-dried to obtain Tannic Acid powder.
Synonyms: Tannin, Gallotannic Acid
Molecular Formula: C76H52O46
CAS# 1401-55-4
EINECS: 215-753-2
Molecular Weight: 1701.18
Tannic Acid Food Grade 92% | ||
Botanicals: |
It is extracted from Chinese Gallnuts ( Galla Chinensis) | |
Process: |
The raw material is extracted using non-toxic solvents, after several purification steps, the concentration is spray-dried to obtain Tannic Acid powder. | |
Synonyms: |
Tannin, Gallotannic Acid | |
Molecular Formula: |
C76H52O46 | |
CAS# |
1401-55-4 | |
EINECS: |
215-753-2 | |
Molecular Weight: |
1701.18 | |
Specifications: |
| |
Item |
Unit |
Requirement (LY/T 1641-2005) |
Appearance |
|
A yellowish-white or slightly brown amorphous light powder |
Assay |
% |
92.0 min |
Loss of drying |
% |
9.0 max |
Residue on ignition |
% |
1.0 max |
Arsenic |
PPM |
3 max |
Lead |
PPM |
5 max |
Heavy Metals (as Pb) |
PPM |
20 max |
Tree gum or dextrin test |
|
Clear |
Resin test |
|
Clear |
Gallic Acid |
% |
4.0 max |
Application:
Wine: It reacts and precipitates the proteins. It is a natural and quite effective system to purify and protect the wine, especially the white one, against oxidation.
Beer: It is particularly suitable for the clarification of beers, cause of its high molecular weight and the very light colour.
Beverages: For the purification from the proteins in solution, to avoid fermentation, and to preserve from the air and light oxidation.
Textile: To fix acid dyes on polyamide fibres. Tannin is one of the most effective agents for this use.
Flock: Together with metallic salts like Aluminium. it is used in the production of natural electrostatic flock. It gives very good characteristic of conductivity, siftability and time stability.
Packing: In 25 kg net fiber drums with inner PE bag.
Storage Recommendations: Preserve in tight, light-resistant containers.
Shelf Life:
24 months under above-mentioned conditions and in unopened container.