PERIODIC TABLE

Indium

Atomic No. 49 In Indium

About Indium

Indium is a soft metal with atomic number 49 that commonly forms compounds in the +3 oxidation state. Indium tin oxide provides transparent conductive coatings for displays and other electronic devices. Indium phosphide and indium antimonide are compound semiconductors, while indium alloys are used where a low melting temperature is useful.

Properties

Atomic Number
49
Atomic Symbol
In
Atomic Mass
114.818
CAS No.
7440-74-6
Density
7.31 g/cm³
Series
post-transition metal
Melting Point
156.6°C
Boiling Point
2,072°C
Thermal Conductivity
0.82 W/cm °C
Heat of Fusion
3.26 kJ/mol
Heat of Vaporization
230 kJ/mol
Electronegativity
1.78 pauling
Crystal Structure
Tetragonal
Electrical Conductivity
1.2×107 S/m

Indium Products

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