Cadmium Disk

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.

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Tolerance

Properties

Reference & Citations

Acute toxicity

Serious health hazard

Hazardous to the environment

each

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