Tannic acid

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Name: Tannic acidCAS NO.: 1401-55-4Alias: Chinese tannin; Gallotannic acid; Gallotannin; Galloylglucose; Glycerite; Penta NM digalloyl glucose; Quebracho; Tannic acid; Tannin; Tannins; Molecular formular: C76H52O46Molecular weight: 1701.22Assay: 81% 88% 90% 92% 95% Packing: 1kg / 25kgAppearance: A yellowish to brownish powder, odour characteristic; taste strongly astringent.Soluble in 1 part of water or alcohol; soluble in acetone; almost insoluble in chloroform or ether.Usage: Tannic acid can be used in many spheres , cuch as medicine , industry production , food manufacturing and dye line . This product is widly use in smelting of germanium manufacture of " lro ink" , metal corrosionresistance, slime treatment of petroleum drilling and raw material of pharmaceytical industry.

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