Rhodium Powder

Rhodium Powder delivers exceptional catalytic activity, outstanding corrosion resistance, and remarkable thermal stability in a finely divided form optimized for maximum surface area and reactivity. This powder geometry enables uniform dispersion in catalytic converters, electroplating baths, specialty chemical reactors, and precision coating systems. Industries rely on rhodium powder for automotive emission control catalysts, selective hydrogenation in fine chemical synthesis, and the production of high-reflectivity, wear-resistant coatings for optical and electronic components. Research applications include catalyst development for green hydrogen production, nanoparticle synthesis for advanced sensor technologies, electrocatalytic studies in fuel cells, and the fabrication of high-performance conductive inks. The combination of noble-metal durability, high intrinsic catalytic activity, and ease of integration into both heterogeneous and electrochemical systems ensures rhodium powder remains a critical enabler in industrial-scale catalytic processes and cutting-edge materials science innovation.

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Tolerance

Properties

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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

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	45
Crystal structure	Face centred cubic
Electronic structure	Kr 4d⁸ 5s¹
Valences shown	2,3,4,5,6
Atomic weight( amu )	102.9055
Thermal neutron absorption cross-section( Barns )	150
Photo-electric work function( eV )	4.6
Atomic radius - Goldschmidt( nm )	0.134
Ionisation potential( No./eV )	1/ 7.46
Ionisation potential( No./eV )	3/ 31.1
Ionisation potential( No./eV )	2/ 18.1

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.26
Poisson's ratio	0.26
Bulk modulus( GPa )	276
Bulk modulus( GPa )	276
Tensile modulus( GPa )	379
Tensile modulus( GPa )	379
Hardness - Vickers( kgf mm⁻² )	300
Hardness - Vickers( kgf mm⁻² )	120
Tensile strength( MPa )	1380-2070
Tensile strength( MPa )	690-760
Yield strength( MPa )	69-275

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	4.7@20@20°C
Temperature coefficient( K⁻¹ )	0.0044@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.7

Physical Properties

Element	Value
Boiling point( C )	3727
Density( gcm⁻³ )	12.4@20°C

Thermal Properties

Element	Value
Melting point( C )	1965
Latent heat of evaporation( J g⁻¹ )	4800
Latent heat of fusion( J g⁻¹ )	210
Specific heat( J K⁻¹ kg⁻¹ )	244@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	150@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	8.5@0-100°C