Tannic Acid powder is an ester substance formed by the combination of five hydroxyl groups of glucose and galloyl galloyl. The molecular weight is about 1701.2 g/mol.
Tannic acid originates from plants in nature and is commonly found in plant roots, stems, leaves and fruits. It is highly favored due to its unique chemical properties. It plays an important role in nutrition and is widely used in tea and red wine. Tannic acid not only enriches the taste experience, but also has health benefits.
| Specification | Food grade | ||
| executive standard | FCC-IV | ||
| content | ≥93% | ≥96% | ≥98% |
| loss on drying | ≤9% | ≤9% | ≤9% |
| water insoluble | ≤0.2% | ≤0.1% | ≤0.1% |
| ignition residue | ≤0.1% | ≤0.1% | ≤0.1% |
| heavy metal | 20ppm | 15ppm | 10ppm |
| arsenic | ＜3ppm | ＜3ppm | ＜3ppm |
| lead | ＜5ppm | ＜5ppm | ＜5ppm |
| mercury | ＜1ppm | ＜1ppm | ＜1ppm |
| gallic acid | ≤4% | ≤2.5% | ≤0.75% |
Tannic AcidCAS 1401-55-4 is a class of complex high molecular weight polyphenol compounds.
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