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Formula: Ge
Form: Pellet/Lump
Material: Germanium
CAS Number: 7440-56-4
Commodity: Metals
Purity:
99.999%
Structure:
Polycrystalline
Germanium pellets from Goodfellow offer high purity and precise dimensions for research and industrial applications. With a melting point of 937°C, germanium pellets exhibit semiconducting properties and high electron mobility. This makes germanium suitable for transistors, solar cells, and infrared optics. Goodfellow provides germanium pellets in a range of sizes and purities to meet your experimental needs. As a leading supplier of metals, ceramics, polymers and other materials, Goodfellow has germanium pellets to support prototyping through production.
Tolerances
Pellet/Lump
| Maximum Lump Size | Nominal |
|---|
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 32 |
| Crystal structure | Diamond |
| Electronic structure | Ar 3d¹⁰ 4s² 4p² |
| Valences shown | 2,4 |
| Atomic weight( amu ) | 72.59 |
| Thermal neutron absorption cross-section( Barns ) | 2.3 |
| Photo-electric work function( eV ) | 4.8 |
| Natural isotope distribution( Mass No./% ) | 72/ 27.4 |
| Natural isotope distribution( Mass No./% ) | 73/ 7.8 |
| Natural isotope distribution( Mass No./% ) | 76/ 7.8 |
| Natural isotope distribution( Mass No./% ) | 70/ 20.5 |
| Natural isotope distribution( Mass No./% ) | 74/ 36.5 |
| Atomic radius - Goldschmidt( nm ) | 0.139 |
| Ionisation potential( No./eV ) | 4/ 45.7 |
| Ionisation potential( No./eV ) | 3/ 34.22 |
| Ionisation potential( No./eV ) | 1/ 7.90 |
| Ionisation potential( No./eV ) | 5/ 93.5 |
| Ionisation potential( No./eV ) | 2/ 15.93 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Mohs | 6.25 |
| Material condition | Polycrystalline |
| Poisson's ratio | 0.32 |
| Bulk modulus( GPa ) | 73.9 |
| Tensile modulus( GPa ) | 79.9 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 46x10⁶@22@22°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 33.9 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 2830 |
| Density( gcm⁻³ ) | 5.32@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 937.4 |
| Latent heat of evaporation( J g⁻¹ ) | 4516 |
| Latent heat of fusion( J g⁻¹ ) | 465 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 322@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 60.2@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 5.75@0-100°C |
Other Customers Purchased
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Zirconium Pellets Formula: Zr
Percentage Purity: 99.2%
Maximum Lump Size: 25mm
Weight: 1g
Type: Sponge
CAS Number: 7440-67-7
UOM Code: 121-660-62
eachStarting at $220.48
Discounts applied for volume purchases -
Zinc Pellets Formula: Zn
Percentage Purity: 99.99%
Maximum Lump Size: 10mm
Weight: 200g
CAS Number: 7440-66-6
UOM Code: 214-480-21
eachStarting at $153.73
Discounts applied for volume purchases -
Yttrium Pellets Formula: Y
Percentage Purity: 99.9%
Maximum Lump Size: 50mm
Weight: 50g
CAS Number: 7440-65-5
UOM Code: 113-102-75
eachStarting at $195.35
Discounts applied for volume purchases -
Zinc Sulfide Pellets Formula: ZnS
Percentage Purity: 99.9%
Maximum Lump Size: 5mm
Weight: 50g
CAS Number: 1314-98-3
UOM Code: 087-370-83
eachStarting at $224.42
Discounts applied for volume purchases -
Ytterbium Pellets Formula: Yb
Percentage Purity: 99.9%
Maximum Lump Size: 25mm
Weight: 900g
CAS Number: 7440-64-4
UOM Code: 195-736-09
eachStarting at $315.25
Discounts applied for volume purchases -
Germanium Foil Formula: Ge
Percentage Purity: 99.999%
Thickness: 0.25mm
Length 1: 10mm
Length 2: 10mm
Electrical Type: N-Type
Structure: Polycrystalline
CAS Number: 7440-56-4
UOM Code: 006-336-64
eachStarting at $338.58
Discounts applied for volume purchases
