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Formula: Ba
Form: Pellet/Lump
Material: Barium
CAS Number: 7440-39-3
Commodity: Metals
Purity:
99%
Maximum Lump Size:
25mm
Barium Pellets possess high density, reactivity, and excellent thermal and electrical conductivity, making them essential in specialized metallurgical, electronic, and chemical applications. Their strong affinity for oxygen, nitrogen, and sulfur enables use as effective getters and deoxidizers in vacuum systems and metal refining. Industries such as electronics, vacuum technology, and specialty alloy production utilize barium pellets to improve material purity and performance. Specific applications include removing residual gases in cathode ray tubes and vacuum chambers, enhancing conductivity in certain high-performance alloys, and acting as a reducing agent in chemical syntheses. In research, Barium Pellets are studied for their reactive properties, role in synthesizing advanced materials, and potential catalytic effects in chemical processes. Their combination of chemical reactivity and metallic characteristics makes them a valuable tool in both industrial production and scientific experimentation requiring controlled reactive environments.
Flammable
Tolerances
Pellet/Lump
| Maximum Lump Size | Nominal |
|---|
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 56 |
| Crystal structure | Body centred cubic |
| Electronic structure | Xe 6s² |
| Valences shown | 2 |
| Atomic weight( amu ) | 137.33 |
| Thermal neutron absorption cross-section( Barns ) | 1.2 |
| Photo-electric work function( eV ) | 2.5 |
| Natural isotope distribution( Mass No./% ) | 135/ 6.6 |
| Natural isotope distribution( Mass No./% ) | 130/ 0.1 |
| Natural isotope distribution( Mass No./% ) | 136/ 7.9 |
| Natural isotope distribution( Mass No./% ) | 138/ 71.7 |
| Natural isotope distribution( Mass No./% ) | 132/ 0.1 |
| Natural isotope distribution( Mass No./% ) | 137/ 11.2 |
| Natural isotope distribution( Mass No./% ) | 134/ 2.4 |
| Atomic radius - Goldschmidt( nm ) | 0.224 |
| Ionisation potential( No./eV ) | 1/ 5.21 |
| Ionisation potential( No./eV ) | 2/ 10.0 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Polycrystalline |
| Poisson's ratio | 0.28 |
| Bulk modulus( GPa ) | 9.7 |
| Tensile modulus( GPa ) | 12.8 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 1640 |
| Density( gcm⁻³ ) | 3.5@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 725 |
| Latent heat of evaporation( J g⁻¹ ) | 1100 |
| Latent heat of fusion( J g⁻¹ ) | 55.8 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 192@25°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 18@0-100°C |
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