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Indium ( In )

General Description:

Discovered in: 1863 by Reich, Richter
Origin of name: From the indigo line in its spectrum

The melting point of indium is 156.61 C, boiling point is 2080 C, specific gravity is 7.31 (20 C), with a valence of 1, 2, or 3. Indium is a very soft, silvery-white metal. The metal has a brilliant luster and emits a high pitched sound when bent. Indium wets glass. Indium may be toxic, but further research is required to assess its effects.

Indium is used in low melting point alloys, making bearing alloys, transistors, thermistors, photoconductors, and rectifiers. When plated or evaporated onto glass, it forms a mirror as good as that formed by silver, but with superior resistance to atmospheric corrosion.

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