Uses of Chromium and Bismuth

Chromium

Bismuth

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Uses

It is used to harden the steel and produces a stainless steel and other various alloys.
It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.

Automobile Industry, Chemical Industry

Alloys

Highly Toxic

✔✘

0.11 Blood/mg dm-3

0.33 p.p.m.

Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.

Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry

Pharmaceutical Industry

Alloys

Low Toxic

✔✘

0.02 Blood/mg dm-3

0.20 p.p.m.