Images are for guidance only and might not represent the final product.

Osmium Powder

Available Configurations

Properties common to all products in this list

Composition: Os Form: Powder Material: Osmium CAS Number: 7440-04-2 Commodity: Metals Purity: 99.9% Max Particle Size: 500μm
Osmium Powder possesses the highest density of any naturally occurring element, exceptional hardness, and remarkable corrosion resistance, particularly against acids and oxidizing agents. Its fine particulate form enables blending into alloys, catalysts, and specialized coatings. Industries such as chemical processing, precision manufacturing, and electronics utilize osmium powder for hardening platinum alloys, creating wear-resistant electrical contacts, and producing catalysts for fine chemical synthesis. Specific applications include contact points in high-reliability switches, fountain pen tips, and catalysts in ammonia and hydrogenation processes. In research, osmium powder supports development of advanced catalytic systems, nanostructured wear-resistant materials, and studies of high-density elemental properties. Its combination of extreme density, stability, and functional adaptability makes it a rare but valuable resource in both industrial production and advanced scientific investigation.
Starting at $1,690.00 each
No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide

Material Properties

Atomic Properties
Element Value
Atomic number 76
Crystal structure Hexagonal close packed
Electronic structure Xe 4f¹⁴ 5d⁶ 6s²
Valences shown 0, 1, 2, 3, 4, 5, 6, 7, 8
Atomic weight( amu ) 190.2
Thermal neutron absorption cross-section( Barns ) 15.3
Photo-electric work function( eV ) 4.8
Natural isotope distribution( Mass No./% ) 192/ 41.0
Natural isotope distribution( Mass No./% ) 184/ 0.02
Natural isotope distribution( Mass No./% ) 187/ 1.6
Natural isotope distribution( Mass No./% ) 189/ 16.1
Natural isotope distribution( Mass No./% ) 186/ 1.58
Natural isotope distribution( Mass No./% ) 188/ 13.3
Natural isotope distribution( Mass No./% ) 190/ 26.4
Atomic radius - Goldschmidt( nm ) 0.135
Ionisation potential( No./eV ) Feb-16
Ionisation potential( No./eV ) 1/ 8.7
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.25
Poisson's ratio 0.25
Bulk modulus( GPa ) 373
Bulk modulus( GPa ) 373
Tensile modulus( GPa ) 559
Tensile modulus( GPa ) 559
Hardness - Vickers( kgf mm⁻² ) 300-350
Hardness - Vickers( kgf mm⁻² ) 670-1000
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 8.8@20°C
Superconductivity critical temperature( K ) 0.66
Temperature coefficient( K⁻¹ ) 0.0041@0-100°C
Physical Properties
Element Value
Boiling point( C ) 5027
Density( gcm⁻³ ) 22.5@20°C
Thermal Properties
Element Value
Melting point( C ) 3045
Latent heat of evaporation( J g⁻¹ ) 3305
Latent heat of fusion( J g⁻¹ ) 154
Specific heat( J K⁻¹ kg⁻¹ ) 131@25
Thermal conductivity( W m⁻¹ K⁻¹ ) 87.6@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.57@0-100
each

Choose Your Options

Close

Available Configurations

Properties common to all products in this list

Composition: Os Form: Powder Material: Osmium CAS Number: 7440-04-2 Commodity: Metals Purity: 99.9% Max Particle Size: 500μm

We are collecting your products, please wait!...

Shipping restrictions and charges may apply for some hazardous materials.

Tolerances

Powder
Mean Particle Size Nominal
Minimum Particle Size Nominal
Maximum Particle Size Nominal
Maximum Particle Size Nominal
Particle Size D10 Nominal
Particle Size D50 Nominal
Particle Size D90 Nominal