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Indium Wire
Indium is a soft, malleable and ductile metal which is generally unaffected by air or water but is soluble in acids. It is found only in the form of minor components of various minerals and the pure element is produced by electrolytic reduction in aqueous solution. Indium is found in the earth's crust at a level of 0.049 ppm.
The unique characteristics of indium metal make it an ideal solution for many soldering and sealing applications. As a wire, pure indium provides an excellent hermetic seal since it fills the imperfections in the mating surfaces. Pure indium also remains malleable at cryogenic temperatures so that sealing applications operating in harsh conditions are not compromised.
Our Indium wires are available from 99% up to 99.999% pure.
Formula In
Molecular Weight 114.82
CAS Number 7440-74-6
Appearance Silver-grey solid
Density 7.31 gm/cm3
Melting Point 156.61oC
Boiling Point 2080oC
Electrical Resistivity 8.37 μOhm-cm (@20oC)
Electronegativity 1.7 Paulings
Heat of Fusion 0.781 Cal/gram mole
Heat of Vaporization 53.7 Cal/gram atom at 2080oC
Poisson’s Ratio 0.4498
Specific Heat 0.056 Cal/gm/K at 25oC
Thermal Conductivity 0.818 W/cm/K at 298.2 K
Thermal Expansion 32.1 μm.m-1.K
Young’s Modulus 11 GPa
Hardness (Mohs) 1.2