. This is a kind of white powder; odourlessness or nearly odourlessness; diversion of water, can change the moist blue color litmus paper to red, which is a kind of basic salt whose composition is uncertainty. This does not dissolve in the water or the ethyl alcohol, while it can be easy dissolve in hydrochloric acid or nitric acid .It is an effective protective agent of gastric mucosa.Pharmaceutical: Bismuth Subnitrate neutralize the hydrochloric Purify:19.5 21.5%(Al),51% 55%(Bi) Specification:25kg/barrel Molecular formula:Bi5O(OH)9(NO3)4Molecular weight:1461.9Specification:25kg/ barrel Packing: Inside lining are two polyethylene plastic bags, the outside wrapping is the paper barrelStoring: Seal, in dry place preservation.Term of validity:3 yearsExecutive standard:USP-29Thank you for your inquiry,we will offer you superior quality product and speedy service.Welcome you