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Tannic Acid Gallotannic acid 1401-55-4
Tannic Acid(Food grade)
Identification:
Chemical Name: Tannic Acid
Synonyms: Gallotannic acid; Gallotannin;
CAS No.: 1401-55-4
Molecular Formula: C76H52O46
Properties: Yellowish or light brown irregular powder,oxidized with deeper color and bitter taste when exposed to air, odorless; soluble in water, ethanol, acetone,and ethyl acetate.
Packing& Storage:
25kg/woven bag , with inner plastic bags.
Avoid moisture and light; hermetically sealed in storage.
Analysis |
Specification |
Results |
Assay |
≥96% |
98.05% |
Appearance |
Light Brown Yellow powder
|
Complies |
Heavy metals |
≤20ppm |
Complies |
Pb |
≤5.0ppm |
Complies |
As |
≤3.0ppm |
Complies |
Ignition residue |
≤1.0% |
0.38% |
Loss on drying |
≤9.0% |
5.91% |
Gum, dextrin |
Negative |
Complies |
Resin |
Negative |
Complies |
Gallic acid |
≤2.5% |
1.15% |
Solubility |
100% |
Complies |
Microbioiogical : |
||
Total of bacteria |
≤1000cfu/g |
Complies |
Fungi |
≤100cfu/g |
Complies |
Salmgosella |
Negative |
Complies |
Coli |
Negative |
Complies |
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