Platinum Disk

Formula: Pt

Form: Disk

Material: Platinum

CAS Number: 7440-06-4

Commodity: Precious Metals

Goodfellow’s platinum disks are available at a maximum purity of 99.999% (5N), known for their exceptional catalytic properties and resistance to high temperatures and corrosion. Platinum is critical in industries such as automotive (catalytic converters), energy (fuel cells), and laboratory equipment manufacturing. Specific uses include electrodes for electrochemical studies and catalysts for chemical reactions. Its role in advancing green energy technologies highlights its importance in both research and industrial innovation efforts worldwide. Platinum’s ability to enhance efficiency and reduce emissions in various industrial processes underscores its value in sustainable development initiatives.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

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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Platinum Disk

Tolerances

Material Properties for Precious Metals