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Elmet Technologies

Indium, In
Categories: Metal; Nonferrous Metal; Indium Alloy; Pure Element

Material Notes:
  • Melting Point below the Sn-Pb eutectic temp (183°C)
  • High plasticity, malleablity and ductility
  • Extremely soft
  • Able to wet glass, quartz and many ceramics
  • There is a large range (~1930°C) between melting point and boiling point
  • Good corrosion resistance to water and akalies

Applications:

  • Alloying for low temperature solders, fuses
  • Semi-conductors
  • Solar cells
  • Electroplating for high-performance engine components

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Physical PropertiesMetricEnglishComments
Density  6.916 g/cc
@Temperature 300 °C
0.2499 lb/in³
@Temperature 572 °F
 6.939 g/cc
@Temperature 271 °C
0.2507 lb/in³
@Temperature 520 °F
 6.974 g/cc
@Temperature 228 °C
0.2520 lb/in³
@Temperature 442 °F
 7.001 g/cc
@Temperature 194 °C
0.2529 lb/in³
@Temperature 381 °F
 7.026 g/cc
@Temperature 164 °C
0.2538 lb/in³
@Temperature 327 °F
 7.30 g/cc
@Temperature 20.0 °C
0.264 lb/in³
@Temperature 68.0 °F
Vapor Pressure  0.001013 bar
@Temperature 1215 °C
0.7598 torr
@Temperature 2219 °F
 0.01013 bar
@Temperature 1421 °C
7.598 torr
@Temperature 2590 °F
 0.1013 bar
@Temperature 1693 °C
75.98 torr
@Temperature 3079 °F
 1.013 bar
@Temperature 2080 °C
759.8 torr
@Temperature 3780 °F
 
Chemical PropertiesMetricEnglishComments
K X-ray Emission Wavelength 0.5121130.512113K-alpha, average
Spectral Line 1 4511.314511.31
Spectral Line 2 4101.764101.76
Spectral Line 3 3256.093256.09
Atomic Mass 114.818114.8181995
Atomic Number 4949
Atomic Volume 15.715.7
Thermal Neutron Cross Section 196 barns/atom196 barns/atom
X-ray Absorption Edge 0.44397 Å0.44397 ÅK
 2.93327 Å2.93327 ÅLI
 3.155 Å3.155 ÅLII
 3.32154 Å3.32154 ÅLIII
Covalent Radius 0.1440.144
Electrode Potential -0.340 V-0.340 V
Electronegativity 1.781.78Pauling
First Ionization Energy 133133
Ionic Radius 0.810 Å0.810 ÅCrystal Ionic Radius for Valence +3
Electrochemical Equivalent 1.4 g/A/h1.4 g/A/h
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 0.90.9
Hardness, Vickers <= 10<= 10
Tensile Strength, Ultimate 4.50 MPa653 psiAnnealed
Tensile Modulus 12.74 GPa1848 ksi
Compressive Strength 2.14 MPa310 psi
Poissons Ratio 0.44980.4498
Shear Modulus 4.40 GPa638 ksiCalculated
Adhesive Bond Strength 6.00 MPa870 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.000 ohm-cm
@Temperature -269.77 °C
0.000 ohm-cm
@Temperature -453.59 °F
Superconducting
 0.00000840 ohm-cm
@Temperature 20.0 °C
0.00000840 ohm-cm
@Temperature 68.0 °F
 0.0000291 ohm-cm
@Temperature 154 °C
0.0000291 ohm-cm
@Temperature 309 °F
 0.0000301 ohm-cm
@Temperature 181 °C
0.0000301 ohm-cm
@Temperature 358 °F
 0.0000319 ohm-cm
@Temperature 222 °C
0.0000319 ohm-cm
@Temperature 432 °F
 0.0000348 ohm-cm
@Temperature 280 °C
0.0000348 ohm-cm
@Temperature 536 °F
Magnetic Susceptibility 1.1e-71.1e-7cgs/g
Critical Magnetic Field Strength, Oersted 279.5 - 283.5279.5 - 283.5
Critical Superconducting Temperature 3.407 - 3.409 K3.407 - 3.409 K
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 28.5 J/g12.3 BTU/lb
Heat of Vaporization 2022 J/g869.9 BTU/lb
CTE, linear 33.0 µm/m-°C
@Temperature 20.0 °C
18.3 µin/in-°F
@Temperature 68.0 °F
Specific Heat Capacity  0.233 J/g-°C
@Temperature 25.0 °C
0.0557 BTU/lb-°F
@Temperature 77.0 °F
 0.252 J/g-°C
@Temperature 127 °C
0.0602 BTU/lb-°F
@Temperature 261 °F
 0.254 J/g-°C
@Temperature 427 °C
0.0607 BTU/lb-°F
@Temperature 801 °F
 0.255 J/g-°C
@Temperature 327 °C
0.0609 BTU/lb-°F
@Temperature 621 °F
 0.256 J/g-°C
@Temperature 227 °C
0.0612 BTU/lb-°F
@Temperature 441 °F
 0.257 J/g-°C
@Temperature 156.63 °C
0.0614 BTU/lb-°F
@Temperature 313.93 °F
liquid
 0.264 J/g-°C
@Temperature 156.63 °C
0.0631 BTU/lb-°F
@Temperature 313.93 °F
solid
Thermal Conductivity 83.7 W/m-K
@Temperature 0.000 °C
581 BTU-in/hr-ft²-°F
@Temperature 32.0 °F
Melting Point 156.61 °C313.90 °F
Boiling Point 2000 °C3630 °F
 
Magnetic PropertiesMetricEnglishComments
Nuclear Spin 4.54.5
 
Component Elements PropertiesMetricEnglishComments
Indium, In 100 %100 %
 
Descriptive Properties
CAS Number7440-74-6

References for this datasheet.

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