Product Information
CAS No: 1401-55-4
Molecular formula: C76H52O46
Specification
81% Standard
Items | Standard |
Appearance | Light yellow to brown powder |
The amount of tannic acid content, %(dry base) | ≥81 |
Loss of drying, % | ≤9 |
Water Insoluble % | ≤0.6 |
Color | ≤2.0 |
Heavy metal % | ≤0.004 |
Arsenic mg/kg | ≤3 |
Lead mg/kg | ≤5 |
92% Standard
Items | Standard |
Appearance | Amorphous light brown powder |
The amount of tannic acid content, %(dry base) | ≥92 |
Odor | Practically odourless |
Taste | Neutral /Slight astringent taste |
Loss of drying, % | ≤9 |
Solubility | Very soluble in water, freely soluble in acetone, in alcohol |
Residue on Ignition % | ≤1.0 |
Heavy metal ppm | ≤20 |
Arsenic ppm | ≤3 |
Lead ppm | ≤1 |
Gums, Dextrin test | No turbidity |
Resins test | No turbidity |
Gallic acid % | ≤4.0 |
Usage
Clarients, mesenchym, crude oil deodorant, fragrance; tannic acid can be used in tanning, ink manufacturing, paper and silk glue, boiler descaling, etc., can also opener, beer and wine , Rubber coagulant, etc.
Package
25kg fiber drum or as per customer request.
Storage
Storage in clean and dry place.
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