Selenium Powder

Selenium Powder provides high surface area, fine particle size, and excellent photoconductive properties, making it ideal for applications in solar energy, electronics, and chemical manufacturing. Its particulate form ensures easy blending into composite materials, rapid dissolution in chemical processes, and uniform coating in deposition systems. Industries such as photovoltaics, electronics, and pigments use selenium powder to fabricate thin-film solar cells, produce semiconductor devices, and add controlled coloration to specialty glasses. Specific applications include producing CdSe-based photovoltaic layers, creating photoconductive coatings for xerography, and synthesizing selenium-containing catalysts. In research, selenium powder supports investigations into semiconductor physics, photonic materials, and nano-enabled optical systems. Its combination of optical activity and powder form makes it highly adaptable for innovation-driven applications.

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Tolerance

Properties

Reference & Citations

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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 Metals

Atomic Properties

Element	Value
Atomic number	34
Crystal structure	Hexagonal
Electronic structure	Ar 3d¹⁰ 4s² 4p⁴
Valences shown	-2,4,6
Atomic weight( amu )	78.96
Thermal neutron absorption cross-section( Barns )	12.2
Photo-electric work function( eV )	5.9
Natural isotope distribution( Mass No./% )	76/ 9.0
Natural isotope distribution( Mass No./% )	82/ 9.2
Natural isotope distribution( Mass No./% )	74/ 0.9
Natural isotope distribution( Mass No./% )	80/ 49.8
Natural isotope distribution( Mass No./% )	77/ 7.6
Natural isotope distribution( Mass No./% )	78/ 23.5
Atomic radius - Goldschmidt( nm )	0.116
Ionisation potential( No./eV )	4/ 42.9
Ionisation potential( No./eV )	6/ 81.7
Ionisation potential( No./eV )	5/ 68.3
Ionisation potential( No./eV )	1/ 9.75
Ionisation potential( No./eV )	3/ 30.8
Ionisation potential( No./eV )	2/ 21.2

Mechanical Properties

Element	Value
Hardness - Mohs	2
Material condition	Polycrystalline
Poisson's ratio	0.447
Bulk modulus( GPa )	8.3
Tensile modulus( GPa )	58

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	12@20@20°C

Physical Properties

Element	Value
Boiling point( C )	685
Density( gcm⁻³ )	4.79@20°C

Thermal Properties

Element	Value
Melting point( C )	217
Latent heat of evaporation( J g⁻¹ )	333
Latent heat of fusion( J g⁻¹ )	69
Specific heat( J K⁻¹ kg⁻¹ )	321@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	0.5@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	37@0-100°C