| Symbol |
Ge |
| Cas |
7440-56-4 |
| Atomic Number |
32 |
| Atomic Weight |
72.59 |
| Densit |
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 |
1.Specification:
Impurities in ppm
| 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 |
2. Application:
Germanium Application:
Jewelry categories: necklaces, bracelets, pendants, watches and so on ......
Wear: underwear, belts, brooches, glasses, insoles, etc. ...
Technology: smart bracelet, smart watches, health detectors, etc. ... ...
Beauty categories: facial massage equipment, beauty stick, slimming equipment, etc. ... ...
3. Germanium, a rare precious metals, smelting and refining requirements are quite strict, the quality
of a material of germanium is very hard, is widely used in aerospace measurement and control, nuclear
detection, optical fiber communication, infrared optics, biomedical and other fields. Because of its high
value and the practical medical value of itself, is also used in facial massage stick, knee pads, wristbands,
waist support, soreness and hot product, sell well throughout southeast Asia, especially in recent years
in South Korea, Japan sparked a buying frenzy enduring.
4. Packing:
Generally packed in 100pieces/plate, also could do according to customer request.
