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Element Details


Element Description

Indium is a ductile, malleable, silvery-white metal; softer than lead. Pure indium emits a high pitched "cry when bent. It is unaffected by water and very stable in air. Most often associated with zinc, indium is also found in iron, lead, and copper ores and is about as abundant as silver.

Property Name Property Value Property Name Property Value
Atomic Volume 15.7W/D Heat of Vaporization 483cal/g
Atomic Code (49In114.818) First Ionization Energy 133K-cal/g-mole
CAS # 7440-74-6 Electronegativity 1.7Pauling's
Covalent Radius 1.44Angstroms
Melting Point 156.6°C Brinell Hardness 0.9
Boiling Point 2072°C Linear Coefficient of Thermal Expansion 33x10-6K-1
Density 7.31g/cm3 Electrical Resistivity @ 20°C 8.37µΩ-cm
Themal Conductivity 0.204cal/cm2/cm/s/°C Crystal Structure Tetragonal
Specific Heat @ 20°C 0.057cal/g°C Modulus of Elasticity 1.57x106psi
Heat of Fusion 6.8k-cal/g-atom Tensile Strength 380psi

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