Industrial uses of bismuth

Bismuth is mainly used in the manufacture of fusible alloys, with a melting point ranging from 47 to 262 °C. The most commonly used alloys of bismuth with metals such as lead, tin, antimony, and indium are used in fire-fighting devices, automatic sprinklers, and safety plugs for boilers. , in the event of a fire, the pistons of some water pipes will "automatically" melt and spray water. In the fire protection and electrical industries, it is used for automatic fire extinguishing systems and electrical fuses and solders. Bismuth alloys have the property of not shrinking when solidified, and are used for casting and printing type and high-precision molds. Bismuth oxycarbonate and bismuth oxynitrate are used to treat skin lesions and gastrointestinal disorders.

It is used to make low-melting alloys and has special importance in fire protection and electrical safety devices.

In analytical chemistry for the detection of Mn. Bismuth can be used to make low melting point alloys, which are used in automatic closing devices or movable type alloys.