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Formula: Pt
Form: Disk
Material: Platinum
CAS Number: 7440-06-4
Commodity: Precious Metals
Our Platinum disks are offered in huge 1731 variations. Made from high-purity platinum, they provide excellent resistance to corrosion and oxidation at high temperatures. Thanks to platinum's high melting point, stability and conductivity, these versatile disks are used in applications like electrical contacts, crucibles and thermocouples With nearly 600 options, our range of Platinum disks can be customized to suit a wide variety of research and industrial needs.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

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

Material Properties for Precious Metals

Atomic Properties
Element Value
Atomic number 78
Crystal structure Face centred cubic
Electronic structure Xe 4f¹⁴ 5d⁹ 6s¹
Valences shown 1,2,3,4
Atomic weight( amu ) 195.08
Thermal neutron absorption cross-section( Barns ) 9
Photo-electric work function( eV ) 5.3
Natural isotope distribution( Mass No./% ) 192/ 0.79
Natural isotope distribution( Mass No./% ) 196/ 25.30
Natural isotope distribution( Mass No./% ) 190/ 0.01
Natural isotope distribution( Mass No./% ) 195/ 33.80
Natural isotope distribution( Mass No./% ) 198/ 7.20
Natural isotope distribution( Mass No./% ) 194/ 32.90
Atomic radius - Goldschmidt( nm ) 0.138
Ionisation potential( No./eV ) 1/ 9.0
Ionisation potential( No./eV ) 2/ 18.6
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.39
Poisson's ratio 0.39
Bulk modulus( GPa ) 276
Bulk modulus( GPa ) 276
Tensile modulus( GPa ) 170
Tensile modulus( GPa ) 170
Hardness - Vickers( kgf mm⁻² ) 40
Hardness - Vickers( kgf mm⁻² ) 100
Tensile strength( MPa ) 200-300
Tensile strength( MPa ) 125-150
Yield strength( MPa ) 14-35
Yield strength( MPa ) 185
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 10.58@20@20°C
Temperature coefficient( K⁻¹ ) 0.00392@0-100°C
Physical Properties
Element Value
Boiling point( C ) 3827
Density( gcm⁻³ ) 21.45@20°C
Thermal Properties
Element Value
Melting point( C ) 1772
Latent heat of evaporation( J g⁻¹ ) 2405
Latent heat of fusion( J g⁻¹ ) 101
Specific heat( J K⁻¹ kg⁻¹ ) 133@025°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 71.6@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 9@0-100

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