Synonyms : Tannic acid,Tannin,Gallotannic acid.
Mol.form and Mol.wt. : C₇₆H₅₂O₄₆ ; 1701.18
Description : 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.
Specification : Meeting the requirement of both U.S.A."Reagent Chemical and Standards"by Joseph Rosin Fifth edition and JIS K8269 standards.
Uses : Reagent tannic acid is used in determination of gallium, germanium, tantalum, thoium, tungsten and uramum,etc,The product by us in also used in manufacture of "lron ink",for clarificant of beer or wine and as a mordant in dyeing and printing fabrice,etc.It is widely used in pharmaceutical industry.
Storage : Tannic acid should be kept in a well-closed container,protected from light.
Packing : Export products in paperboard circular kegs of 25kg net each.

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