Germanium Metal Products
Request Germanium Metal Pricing
Auremo LLC, 505 Ellicott St, Buffalo, NY 14203, handles germanium metal inquiries for U.S. technical and industrial projects. Call +1 716 910 04 21 or send the purity, form, dimensions, testing and quantity.
Available product forms
- ingot, pieces and polycrystalline material
- rod and bar subject to specification
- granules or powder by request
- custom research forms subject to review
Information to include in your request
Please provide the governing standard or grade, product form, dimensions and tolerances, quantity, delivery ZIP code and required documentation. Pricing and availability are confirmed individually for each inquiry.
Frequently asked questions
How is the price for germanium metal products confirmed?
Prices are provided on request and depend on the exact grade or standard, dimensions, tolerances, quantity, documentation and freight requirements.
Can non-standard dimensions be requested?
Yes. Include a drawing or dimensional requirements. Availability and manufacturing or sourcing feasibility are confirmed with the quotation.
What is the typical delivery time in the United States?
Typical U.S. delivery is 2–3 weeks after order confirmation. The final lead time and delivery terms are stated in the quotation for the selected material, quantity and destination.
Related materials and references
Germanium metal purity and quote details
State whether polycrystalline or single-crystal material is required and provide the minimum purity, dopant or electrical requirements, product form, dimensions, surface condition, analytical testing, certificates, quantity and destination ZIP code. Germanium metal, germanium dioxide and finished optical components are different products and must be identified separately.
Germanium is sot metal of silvery color. It is an element of the fourth group of periodic system, where it is designated as Ge. It relates to trace elements. Its atomic weight is 72.59 and specific weight is 5.33 g/cm3. It was invented in 1886 by German scientist. Its name derived from a name of his motherland - Germany. It cannot be met in a pure state. It can only be met as an additive in nickel-tungsten mines, sedimentary rocks, carbone, silicates, turf, thermal water. It can also be stored in algaes.
Technical characteristics
Germanium is relatively brittle metal. It is not exposed to cold or hot pressure working up to a temperature of 550 °C. Surface film makes it fairly resistant to effect of air, water, salt acid in standard conditions. It weakly reacts with caustic sodas but can be easily dissolved with chloronitrous acid or alkali solution of hydrogen superoxide. Chemical valency is +2 +4. Chemical compounds with high valence are more stable. The most frequently is used dioxide GeO2. .
Physical properties of Ge
| Description | Identification |
| Atomic (molar) weight mole/h | 72.64 |
| Oxidation rate | 4,2 |
| Density [g/cm3] |
5.323 |
| Melting point | 938.2°С |
| Melting heat kJ/mole | 36.8 |
| Heat conductivity K [V/m*K] | 60.2 |
| Evaporation heat kJ/mole | 328 |
Manufacture
Germanium is obtained by non-ferrous ore processing and out of coal ash. Germanium content is defined with a help of emission spectrum analysis, where it is found by forming of germanium-molybdenum bright-yellow acid. It is smelted by metallurgic method at a temperature of 800−1800°C. To obtain engineering germanium, it must be purified in quartz columns with a help of salt acid by thermal diffusion method that is intended to do crystallization. Manufacture of single-crystalline germanium used in semi-conducting devices specifies by GOST 16 153−80 and technical conditions.
Application
This metal relates to semi-conductors that are used as high-frequency single-crystallines for manufacture of transistors, photoconductive resistors, photodiodes, and diodes. There are made Hall devices, resistant thermometers, lenses of X-ray spectrum analysis. High-tensile germanium spatter is used in jewelry and dentoprosthetic technique. Some alloys on its basis are intended to be used in anticorrosion coverings. Additives of GeO2 dioxide are utilized in alloys, metal mill-products - wire, bar, sheets.
