| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Customized |
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Ge content ≥ 99.999%, resistivity ≥ 50Ω • cm (20 ± 0.5 ºC). Silver gray metallic luster, cuboid bar shape, hard and brittle, melting point of 937.4 ºC, boiling point of 2800 ºC, density of 5.325g/cm3. 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 germanium use in electronics are in fibre-optic systems, infrared optics and in solar cell applications. |
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Analysis
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Specification
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Result
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Test method
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Physical Description
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Appearance
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Metal powder | Metal powder |
Visual
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Odor
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Characteristic
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Characteristic
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Organoleptic
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Particle size
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90% pass 80 mesh
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90% pass 80 mesh
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80 Mesh Screen
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Chemical Tests
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Assay (Lutein)
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99%
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90.15%
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HPLC
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Loss on drying
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5.0% Max
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1.82%
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5g/105ºC/2hrs
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Ash Contents
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5.0% Max
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1.12%
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2g/525ºC/3hrs
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Residual Solvents
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50.0 ppm, Only Ethanol
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<30.0 ppm
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/
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Heavy metals
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5.0 ppm Max
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<3.0 ppm
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AAS
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Lead
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3.0 ppm Max
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<1.0 ppm
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AAS
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Arsenic
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3.0 ppm Max
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<1.0 ppm
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AAS
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Microbiology Control
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Total Bacteria Count
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1,000cfu/g Max
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<280cfu/g
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AOAC
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Yeast & Mold
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100cfu/g Max
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<10cfu/g
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AOAC
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Coliform
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30.0 MPN/g Max
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<3.0 MPN/g
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AOAC
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Conclusion
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Complies with the standards.
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General Status
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Non-GMO, ISO Certificated.
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