Bismuth Trioxide is obtained by melting the powdered form with potassium hydroxide, by boiling the hydroxide with potassium or sodium hydroxide, by the action of potassium cyanide on a nitric acid solution of bismuth nitrate. The oxide is also obtained when chlorine is passed into a fused mixture of bismuth and silver nitrate.Bismuth monoxide when heated in air yields the trioxide.
Bismuth Trioxide is being evaluated as a lead replacement in manufacturing free machining brasses especially for plumbing applications.Bismuth Trioxide is mainly used as an alternative for lead especially in the manufacturing of bullets, shots and other ammunition.Bismuth Trioxide is used as a pigment in manufacturing paints for eye shadows, nail polishes and hair sprays. Growing cosmetic industry is expected to boost the overall demand for bismuth market.This product is used as an alternative to lead and hence, has been used in range of applications where previously lead was used.
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