Cadmium Foil

Formula: Cd

Form: Foil/Film/Sheet

Material: Cadmium

CAS Number: 7440-43-9

Commodity: Metals

Goodfellow's cadmium foil is available with a maximum purity of 99.999% (5N), offering the material's unique properties in a versatile foil format. Despite restrictions due to toxicity concerns, cadmium remains crucial for specific applications such as neutron absorption in nuclear technology or as a component of certain solar cells and radiation detectors. For research purposes, high-purity cadmium foil is essential for studying semiconductor properties and developing new optoelectronic materials. Its role in specialized battery technologies or as a corrosion-resistant coating underscores its continued importance within niche areas of science and industry despite regulatory limitations on its use globally.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Foil/Film/Sheet

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

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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Cadmium Foil

Tolerances

Material Properties for Metals