Molecular formula:4BiNO3(OH)2BiO(OH) Molecular weight:1461.987 Description:White superfine powder,not dissolve in water or alcohol,easily dissolve in nitric acid or hydrochloric acid. Usage:Mainly applied in pharmaceutical industry,owns the astringency,can be used as stomach drug to treat the intestines and stomach disease,also can be used for disposing wound and arresting the bleeding; assay sugar and alkaloid in clinic test.Also acted as antiseptics,deodorant and stratographic analysis reagent etc. Quality standard:USP