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Synonyms: tannic acid, tannin, gallnut tannic acid
Molecular formula and molecular weight: C76H52O46; 1434～1701.18
Properties: Light yellow powder, and has special smell, with obscure flavor. It could be dissolved in 1 share of water or ethyl alcohol and Aceton, instead of chloroform or diethyl ether.
Specification:Comply with FDA Food Chemistry Code 3 and US Food Chemistry Code Standard(1981);American Food FCC-IV Standard.
Uses: Mainly used as the clarifying agent of the beer, wine and low-alcohol liquor, and could also be used for the processing of the pineapple proteinase food.
Storage: Stored in an airtight container.
Package: Inner plastic and outer woven bags, 25 kg net weight per bag.
Quality standard:
|
tannic Acid content% |
≥92 |
|
Loss on drying% |
≤ 9 |
|
Burning residue% |
≤1.0 |
|
Arsenic PPM |
≤3 |
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Heavy metal PPM |
≤20 |
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Resin or dextrin test |
acceptable |
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Resin substance test |
acceptable |
