Lead Foil

Formula: Pb

Form: Foil/Film/Sheet

Material: Lead

CAS Number: 7439-92-1

Commodity: Metals

Goodfellow provides lead foil with a maximum purity of 99.999% (5N). Despite environmental concerns, high-purity lead foil remains crucial in specific applications due to its unique properties. It's extensively used in radiation shielding for medical and nuclear applications, benefiting from lead's high density. In the electronics industry, lead foil is used in specialized solders and as a protective layer in certain battery technologies. For research purposes, ultra-pure lead foil is valuable in studying superconductivity and in the development of advanced radiation detection systems. Its role in particle physics experiments and specialized imaging technologies highlights its ongoing importance in scientific research. The foil's high purity ensures minimal interference in sensitive measurements, making it ideal for use in experiments requiring both radiation protection and precise elemental composition.

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Technical 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	82
Crystal structure	Face centred cubic
Electronic structure	Xe 4f¹⁴ 5d¹⁰ 6s² 6p²
Valences shown	2, 4
Atomic weight( amu )	207.2
Thermal neutron absorption cross-section( Barns )	0.18
Photo-electric work function( eV )	4
Natural isotope distribution( Mass No./% )	207/ 22.1
Natural isotope distribution( Mass No./% )	208/ 52.4
Natural isotope distribution( Mass No./% )	206/ 24.1
Natural isotope distribution( Mass No./% )	204/ 1.4
Atomic radius - Goldschmidt( nm )	0.175
Ionisation potential( No./eV )	5/ 68.8
Ionisation potential( No./eV )	3/ 31.9
Ionisation potential( No./eV )	4/ 42.3
Ionisation potential( No./eV )	2/ 15.03
Ionisation potential( No./eV )	1/ 7.42

Mechanical Properties

Element	Value
Hardness - Mohs	1.5
Material condition	Polycrystalline
Material condition	Sand cast
Poisson's ratio	0.44
Poisson's ratio	0.44
Bulk modulus( GPa )	45.8
Bulk modulus( GPa )	45.8
Tensile modulus( GPa )	16.1
Tensile modulus( GPa )	16.1
Tensile strength( MPa )	12
Yield strength( MPa )	5.5

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	20.6@20@20°C
Superconductivity critical temperature( K )	7.196
Temperature coefficient( K⁻¹ )	0.0042@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.44

Physical Properties

Element	Value
Boiling point( C )	1740
Density( gcm⁻³ )	11.35@20

Thermal Properties

Element	Value
Melting point( C )	327.5
Latent heat of evaporation( J g⁻¹ )	862
Latent heat of fusion( J g⁻¹ )	23.2
Specific heat( J K⁻¹ kg⁻¹ )	159@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	35.3@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	29@0-100°C