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Formula: Cd
Form: Disk
Material: Cadmium
CAS Number: 7440-43-9
Commodity: Metals
Hazard Pictogram: GHS06, GHS08, GHS09
Goodfellow provides cadmium disks with a maximum purity of 99.999% (5N), catering to specialized applications that require its unique properties. Cadmium is known for its low melting point, excellent corrosion resistance, and ability to absorb neutrons. While its use is restricted due to toxicity concerns, it remains crucial in specific industries. Cadmium is used in nuclear reactor control rods, nickel-cadmium batteries, and certain types of solar cells. In research, high-purity cadmium is essential for studying semiconductor physics and developing new photovoltaic materials. Its role in radiation detection and imaging technologies makes it valuable in both medical and scientific fields. The ongoing research into cadmium-based quantum dots highlights its potential in next-generation display and lighting technologies.
Technical Data Sheet Safety Data Sheet Tolerance Properties

Acute toxicity

Serious health hazard

Hazardous to the environment

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Tolerances

Disk
Thickness >0.05mm ±10%
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 48
Crystal structure Hexagonal close packed
Electronic structure Kr 4d¹⁰ 5s²
Valences shown 2
Atomic weight( amu ) 112.41
Thermal neutron absorption cross-section( Barns ) 2450
Photo-electric work function( eV ) 4
Natural isotope distribution( Mass No./% ) 106/ 1.2
Natural isotope distribution( Mass No./% ) 108/ 0.9
Natural isotope distribution( Mass No./% ) 11112.8
Natural isotope distribution( Mass No./% ) 112/ 24.0
Natural isotope distribution( Mass No./% ) 113/ 12.3
Natural isotope distribution( Mass No./% ) 116/ 7.6
Natural isotope distribution( Mass No./% ) 110/ 12.4
Natural isotope distribution( Mass No./% ) 114/ 28.8
Atomic radius - Goldschmidt( nm ) 0.152
Ionisation potential( No./eV ) 2/ 16.9
Ionisation potential( No./eV ) 3/ 37.5
Ionisation potential( No./eV ) 1/ 8.99
Mechanical Properties
Element Value
Hardness - Mohs -
Hardness - Mohs 2
Material condition Polycrystalline
Material condition Cast
Poisson's ratio 0.3
Poisson's ratio 0.3
Bulk modulus( GPa ) 51
Bulk modulus( GPa ) 51
Tensile modulus( GPa ) 62.6
Tensile modulus( GPa ) 62.6
Tensile strength( MPa ) -
Tensile strength( MPa ) 71
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 7.3@20@20°C
Superconductivity critical temperature( K ) 0.517
Temperature coefficient( K⁻¹ ) 0.0043@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.91
Physical Properties
Element Value
Boiling point( C ) 765
Density( gcm⁻³ ) 8.64@20°C
Thermal Properties
Element Value
Melting point( C ) 321
Latent heat of evaporation( J g⁻¹ ) 886
Latent heat of fusion( J g⁻¹ ) 57
Specific heat( J K⁻¹ kg⁻¹ ) 232@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 96.9@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 31@0-100°C

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