It is used for the hydrolysis of ribonucleic acid and as absorbent for rutin and quercetin. It is a component used in milk of bismuth is used in gastrointestinal disorders as a protective agent. It is used for the removal of nitrate and other anions from water by yellow bismuth hydroxide. A bismuth oxide nanoplate is useful for carbon dioxide gas sensor.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.