Chemical Properties
heavy, white powder(s); slightly hygroscopic; uses: cosmetics, ceramic glasses, and enamel fluxes; there is a 99.99+% pure monohydrate, CAS RN 13595-83-0 [HAW93] [ALD94]
Physical properties
White powder; density 4.93 g/cm
3; decomposes at 260°C; insoluble in water and ethanol; dissolves in acids.
Uses
Bismuth(III) nitrate oxide is used as an organic chemical synthesis intermediate. It is also used in the spectrophotometric detection of bismuth.
Uses
Bismuth oxynitrate is used in cosmetics, enamel fluxes and ceramic glazes. Medical applications include treatment of diarrhea, and gastric ulcers; and opacifier in x-ray diagnosis of alimentary canal .
Preparation
Bismuth oxynitrate is prepared by hydrolysis of bismuth nitrate using either water or sodium bicarbonate solution under mild heating (between 30 to 70°C) and stirring. The composition of the product formed can vary depending on the strength of nitric acid and the quantity of water used.
