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]
물리적 성질
White powder; density 4.93 g/cm3; decomposes at 260°C; insoluble in water and ethanol; dissolves in acids.
용도
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 .
제조 방법
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.
