Product Details:
Payment & Shipping Terms:
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| Material: | Germanium | Appearance: | Bar |
|---|---|---|---|
| Main Application: | Fusible Alloys, Solders And Flat Panel Display Coatings. | Type: | Non Ferrous Metal Material |
| CAS: | 7440-56-4 | Purity: | 99.999% |
| Color: | Silvery White | Model Number: | Ge 5N |
| High Light: | germanium oxide,germanium granules |
||
| Material name | Purity | size |
| High purity Germanium | 5N-7N | |
| Germanium Ingot | 5N | |
| Germanium powder | 5N | 100,200,325 mesh |
| Germanium Dioxide | 5N-6N |
Characteristics: |
Lustrous, hard, grayish-white solid metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a 'p-type' semiconductor material. Conductivity depends largely on added impurities. Attacked by nitric acid and aqua regia, but stable in water, acids, and alkalies in absence of dissolved oxygen, low toxicity. |
Applications: |
Isolated germanium is mainly used as a semiconductor material for transistors. The first generation of semiconductors were based solely on germanium. However, most of today’s semiconductor production is based on silicon and germaniums use in electronics are in fibre-optic systems, infrared optics and in solar cell applications.. |
2. GENERAL PROPERTIES
Symbol: |
Ge |
Cas: |
7440-56-4 |
Atomic Number: |
32 |
Atomic Weight: |
72.59 |
Density: |
5.323 gm/cc |
Melting Point: |
937.4 oC |
Boiling Point: |
2830 oC |
Thermal Conductivity: |
0.602 W/cm/K @ 302.93 K |
Electrical Resistivity: |
microhm-cm @ 20 oC |
Electronegativity: |
1.8 Paulings |
Specific Heat: |
0.077 Cal/g/K @ 25 oC |
Heat of Vaporization: |
68 K-cal/gm atom at 2830 oC |
| Ge% | 99.999min |
| AI(ppm) | 0.1max |
| Cu(ppm) | 0.2max |
| Fe(ppm) | 0.1max |
| Pb(ppm) | 0.1max |
| Ni(ppm) | 0.2max |
| Co(ppm) | 0.2max |
| As(ppm) | 0.1max |
| Total content of AI, Cu, Fe, Pb, Bi,Na, Si, S,Se, As, Mg (ppm) | 10max |
First step: |
Packed in vacuum polyester bag/ plastic bag. |
Second step: |
Packed in vacuum polyester bag or aluminum foil bag again. |
Third step: |
Wrapped with bubble, load to the carton and seal the carton |
5. Shipping
Preparation time before shipping |
If we have stock, we could delivery the material in 3-5 days after customer confirmed the PO |
If we do not have stock, we could delivery the material in 7-15 days according to customer purchased quantity. |
Cargo shipping time |
If the material is delivery by express, it takes 3-6 days to arrive at the destination place. |
If the material is shipped by air, it takes 3-6 days to arrive in the destination air port. |
If the material is shipped by sea, it takes 10-40 days to arrive in the different countries sea ports |
Cost: |
We have lower cost as we are manufacturer |
Quality: |
We have professional R&D team. For example, customer speak highly of our product-Tellurium 7 N-World first class grade |
Shipping: |
Production capacity is large and we have large stock, could meet customer delivery requirement at most. |
Payment term: |
The payment term could be flexible. We could offer T/T 30 days or 60 days to customer with good credit. |
Service: |
Pre-sales and after-sales are ready to answer product questions. 24 hours technical support by e-mail or Calling. |
