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Formula: Rb
Form: Pellet/Lump
Material: Rubidium
CAS Number: 7440-17-7
Commodity: Metals
Purity:
99.9%
Maximum Lump Size:
10mm
Rubidium Pellets are a highly reactive alkali metal form supplied for controlled laboratory and industrial applications. With a low melting point, high reactivity, and strong tendency to form ionic compounds, rubidium pellets are critical in advanced electronics, chemical synthesis, and atomic research. Industries such as specialty glass, electronics, and scientific instrumentation utilize rubidium in photomultiplier tubes, vapor cells, and specialty optical glasses. Specific applications include atomic clock calibration, getter materials in vacuum systems, and alkali vapor sources for quantum optics experiments. In research, rubidium pellets are indispensable for studying atomic transitions, laser cooling and trapping, and alkali-metal-based catalytic reactions. Their unique chemical reactivity and role in precision measurement technologies make rubidium pellets a cornerstone material in both applied industrial systems and cutting-edge research.
Flammable
Corrosive
Tolerances
Pellet/Lump
| Maximum Lump Size | Nominal |
|---|
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 37 |
| Crystal structure | Body centred cubic |
| Electronic structure | Kr 5s¹ |
| Valences shown | 1,2,3,4 |
| Atomic weight( amu ) | 85.4678 |
| Thermal neutron absorption cross-section( Barns ) | 0.5 |
| Photo-electric work function( eV ) | 2.1 |
| Natural isotope distribution( Mass No./% ) | 85/ 72.17 |
| Natural isotope distribution( Mass No./% ) | 87/ 27.83 |
| Atomic radius - Goldschmidt( nm ) | 0.251 |
| Ionisation potential( No./eV ) | 4/ 52.6 |
| Ionisation potential( No./eV ) | 6/ 84.4 |
| Ionisation potential( No./eV ) | 3/ 40.0 |
| Ionisation potential( No./eV ) | 1/ 4.18 |
| Ionisation potential( No./eV ) | 2/ 27.3 |
| Ionisation potential( No./eV ) | 5/ 71.0 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Mohs | 0.3 |
| Material condition | Polycrystalline |
| Poisson's ratio | 0.3 |
| Bulk modulus( GPa ) | 2.5 |
| Tensile modulus( GPa ) | 2.35 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 12.1@20@20 |
| Temperature coefficient( K⁻¹ ) | 0.0048@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 686 |
| Density( gcm⁻³ ) | 1.532@20 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 38.89 |
| Latent heat of evaporation( J g⁻¹ ) | 887 |
| Latent heat of fusion( J g⁻¹ ) | 25.7 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 360@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 58.2@0-100 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 9@0-100 |
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