- Materials
- Forms
- Reference Materials
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
-
- Brands
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
Germanium Rod - Ø 5mm L 100mm
Details
Formula: Ge
Percentage Purity: 99.999%
Diameter: 5mm
Length: 100mm
Electrical Type: N-Type
Structure: Polycrystalline
CAS Number: 7440-56-4
UOM Code: 602-081-07
Legacy Code: GE007920
Distributor Code: GF60208107
Percentage Purity: 99.999%
Diameter: 5mm
Length: 100mm
Electrical Type: N-Type
Structure: Polycrystalline
CAS Number: 7440-56-4
UOM Code: 602-081-07
Legacy Code: GE007920
Distributor Code: GF60208107
Tolerances
Rod
| Diameter | =<10mm | ±10% |
|---|---|---|
| Diameter | >10mm | ±5% |
$3,060.00
each
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties
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 ) | 46x10⁶22°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 |