Bismuth Subnitrate

Drug Details

Bismuth subnitrate, also known as bismuth oxynitrate or bismuthyl nitrate, is a white, crystalline compound with the chemical formula Bi5H9N4O22. It has been utilized in various applications, including as an antacid for treating duodenal ulcers and diarrhea. Additionally, bismuth subnitrate is employed in cosmetics, ceramic glazes, and enamel fluxes due to its unique properties. In the ceramics industry, it acts as a strong flux, contributing to the pearly luster of glazes and glasses, especially under light reduction firing conditions. However, its high cost limits its use to specialized products. Bismuth subnitrate is practically insoluble in water and alcohol but dissolves readily in excess hydrochloric or nitric acid. It is important to note that impurities such as arsenic, lead, and silver carbonates may be present in bismuth subnitrate. (, )