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Formula: Pt
Form: Thin Film
Material: Platinum
CAS Number: 7440-06-4
Commodity: Precious Metals
Purity: 99.99%

Platinum Thin Film Disk (Mylar® Backing)

Platinum Thin Film Disk offers exceptional corrosion resistance, thermal stability, and catalytic activity in a precisely machined circular format designed for integration into high-performance sensing, catalysis, and electronic systems. The thin film maximizes active surface area while maintaining uniform thickness and mechanical integrity, enabling use as high-efficiency electrodes, precision catalytic interfaces, and durable optical coatings. Industries deploy it in fuel cells, biomedical diagnostic sensors, and high-temperature reflective components for aerospace and energy applications. Research applications include thin-layer electrochemical analysis, catalyst performance testing under controlled geometries, and optical or electronic device prototyping. The disk form’s combination of compact uniformity, controlled surface characteristics, and platinum’s noble metal resilience ensures long-term reliability and accuracy in both industrial production and cutting-edge laboratory innovation.
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Tolerances

Thin Film
Thickness ±30%
Disk
Diameter ±20%

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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