Germanium
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- $39.8 - $6820
- Product name: Germanium
- CAS: 7440-56-4
- MF: Ge
- MW: 72.64
- EINECS:231-164-3
- MDL Number:MFCD00085310
- Synonyms:GERMANIUM, 99.9999%;Germanium sludge;Germanium, Pieces 3-9mm;Germanium, Powder 10 Mesh;Germanium pieces, 2cm (0.8in) & down, 99.9999% (metals basis);Germanium, plasma standard solution, Specpure(R), Ge 1000μg/ml;Germanium, AAS standard solution, Specpure(R), Ge 1000μg/ml;Germanium pieces, 2cm (0.8in) & down, Puratronic(R), 99.9999+% (metals basis)
82 prices
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Brand
- ProChem
- Sigma-Aldrich
- Strem Chemicals
Package
- 5g
- 10gm
- 10g
- 25g
- 50g
- 50gm
- 1ea
- 2ea
- 5ea
- ManufacturerProChem
- Product number1906
- Product descriptionGermanium,pieces,3-9mmProduct#Purity 99.999%
- Packaging10gm
- Price$75
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1906
- Product descriptionGermanium, pieces, 3-9 mm Product # Purity 99.999%
- Packaging10gm
- Price$75
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1909
- Product descriptionGermanium, powder, -10 Mesh Product # Purity 99.999%
- Packaging10gm
- Price$160
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1909
- Product descriptionGermanium,powder,-10MeshProduct#Purity 99.999%
- Packaging10gm
- Price$160
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1906
- Product descriptionGermanium, pieces, 3-9 mm Product # Purity 99.999%
- Packaging50gm
- Price$225
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1906
- Product descriptionGermanium,pieces,3-9mmProduct#Purity 99.999%
- Packaging50gm
- Price$225
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1909
- Product descriptionGermanium,powder,-10MeshProduct#Purity 99.999%
- Packaging50gm
- Price$585
- Updated2021-12-16
- Buy
- ManufacturerProChem
- Product number1909
- Product descriptionGermanium, powder, -10 Mesh Product # Purity 99.999%
- Packaging50gm
- Price$585
- Updated2021-12-16
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF12210624
- Product descriptionGermanium microfoil, 50x50mm, thinness 0.25μm, specific density 166.3μg/cm2, 6 micron aluminum permanent support, 100%
- Packaging1ea
- Price$2840
- Updated2026-03-19
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF77697680
- Product descriptionGermanium microfoil, 25x25mm, thinness 0.25μm, specific density 166.3μg/cm2, 6 micron aluminum permanent support, 100%
- Packaging5ea
- Price$3140
- Updated2026-03-19
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- ManufacturerSigma-Aldrich
- Product numberGF58880739
- Product descriptionGermanium microfoil, 25x25mm, thinness 0.5μm, specific density 333μg/cm2, 6 micron aluminum permanent support, 100%
- Packaging1ea
- Price$1680
- Updated2026-03-19
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF65029417
- Product descriptionGermanium rod, 25mm, diameter 5mm, polycrystalline, n-type, 99.999%
- Packaging2ea
- Price$1730
- Updated2023-01-07
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF89546574
- Product descriptionGermanium powder, 150 max. part. size (micron), weight 100 g, purity 99.999%
- Packaging1ea
- Price$1980
- Updated2025-07-31
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- ManufacturerSigma-Aldrich
- Product numberGF42632883
- Product descriptionGermanium lump, 25 mm max. lump size, weight 100 g, purity 99.999%
- Packaging1ea
- Price$2010
- Updated2026-03-19
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF31896366
- Product descriptionGermanium sheet, 7x24mm, thickness 1.0mm, polycrystalline, 99.999%
- Packaging5ea
- Price$2040
- Updated2026-03-19
- Buy
- ManufacturerSigma-Aldrich
- Product numberGF14446346
- Product descriptionGermanium rod, 50mm, diameter 5mm, polycrystalline, n-type, 99.999%
- Packaging1ea
- Price$2110
- Updated2026-03-19
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| ProChem | 1906 | Germanium,pieces,3-9mmProduct#Purity 99.999% | 10gm | $75 | 2021-12-16 | Buy |
| ProChem | 1906 | Germanium, pieces, 3-9 mm Product # Purity 99.999% | 10gm | $75 | 2021-12-16 | Buy |
| ProChem | 1909 | Germanium, powder, -10 Mesh Product # Purity 99.999% | 10gm | $160 | 2021-12-16 | Buy |
| ProChem | 1909 | Germanium,powder,-10MeshProduct#Purity 99.999% | 10gm | $160 | 2021-12-16 | Buy |
| ProChem | 1906 | Germanium, pieces, 3-9 mm Product # Purity 99.999% | 50gm | $225 | 2021-12-16 | Buy |
| ProChem | 1906 | Germanium,pieces,3-9mmProduct#Purity 99.999% | 50gm | $225 | 2021-12-16 | Buy |
| ProChem | 1909 | Germanium,powder,-10MeshProduct#Purity 99.999% | 50gm | $585 | 2021-12-16 | Buy |
| ProChem | 1909 | Germanium, powder, -10 Mesh Product # Purity 99.999% | 50gm | $585 | 2021-12-16 | Buy |
| Sigma-Aldrich | GF12210624 | Germanium microfoil, 50x50mm, thinness 0.25μm, specific density 166.3μg/cm2, 6 micron aluminum permanent support, 100% | 1ea | $2840 | 2026-03-19 | Buy |
| Sigma-Aldrich | GF77697680 | Germanium microfoil, 25x25mm, thinness 0.25μm, specific density 166.3μg/cm2, 6 micron aluminum permanent support, 100% | 5ea | $3140 | 2026-03-19 | Buy |
| Sigma-Aldrich | GF58880739 | Germanium microfoil, 25x25mm, thinness 0.5μm, specific density 333μg/cm2, 6 micron aluminum permanent support, 100% | 1ea | $1680 | 2026-03-19 | Buy |
| Sigma-Aldrich | GF65029417 | Germanium rod, 25mm, diameter 5mm, polycrystalline, n-type, 99.999% | 2ea | $1730 | 2023-01-07 | Buy |
| Sigma-Aldrich | GF89546574 | Germanium powder, 150 max. part. size (micron), weight 100 g, purity 99.999% | 1ea | $1980 | 2025-07-31 | Buy |
| Sigma-Aldrich | GF42632883 | Germanium lump, 25 mm max. lump size, weight 100 g, purity 99.999% | 1ea | $2010 | 2026-03-19 | Buy |
| Sigma-Aldrich | GF31896366 | Germanium sheet, 7x24mm, thickness 1.0mm, polycrystalline, 99.999% | 5ea | $2040 | 2026-03-19 | Buy |
| Sigma-Aldrich | GF14446346 | Germanium rod, 50mm, diameter 5mm, polycrystalline, n-type, 99.999% | 1ea | $2110 | 2026-03-19 | Buy |
Properties
Melting point :937 °C (lit.)
Boiling point :2830 °C (lit.)
Density :5.35 g/mL at 25 °C (lit.)
vapor pressure :0Pa at 25℃
storage temp. :Flammables area
solubility :insoluble in H2O, dilute acid solutions, alkaline solutions
form :powder
color :Silver
Specific Gravity :5.35
PH :0.5 (20°C in H2O)
Flame Color :Pale blue
Resistivity :53000 μΩ-cm, 20°C
Water Solubility :insoluble H2O, HCl, dilute alkali hydroxides; attacked by aqua regia [MER06]
Electrical Conductivity :2000 S/m
Thermal Conductivity :60 W/(m·K)
Crystal Structure :Cubic, Diamond Structure - Space Group Fd3m
Merck :13,4419
Exposure limits :ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin)
OSHA: TWA 3 ppm
NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3) Stability :Stable. Slightly soluble in strong acids. Incompatible with strong oxidizing agents.
InChI :1S/Ge
InChIKey :GNPVGFCGXDBREM-UHFFFAOYSA-N
SMILES :[Ge]
LogP :4.14 at 20℃
Knoop Microhardness :7644, N/mm2 Microhardness
Modulus of Elasticity :130 GPa, Average of three axes
Poissons Ratio :0.30, Calculated
Shear Modulus :50.0 GPa, Average of three axes.
CAS DataBase Reference :7440-56-4(CAS DataBase Reference)
NIST Chemistry Reference :Germanium(7440-56-4)
EPA Substance Registry System :Germanium (7440-56-4)
Boiling point :2830 °C (lit.)
Density :5.35 g/mL at 25 °C (lit.)
vapor pressure :0Pa at 25℃
storage temp. :Flammables area
solubility :insoluble in H2O, dilute acid solutions, alkaline solutions
form :powder
color :Silver
Specific Gravity :5.35
PH :0.5 (20°C in H2O)
Flame Color :Pale blue
Resistivity :53000 μΩ-cm, 20°C
Water Solubility :insoluble H2O, HCl, dilute alkali hydroxides; attacked by aqua regia [MER06]
Electrical Conductivity :2000 S/m
Thermal Conductivity :60 W/(m·K)
Crystal Structure :Cubic, Diamond Structure - Space Group Fd3m
Merck :13,4419
Exposure limits :ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin)
OSHA: TWA 3 ppm
NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3) Stability :Stable. Slightly soluble in strong acids. Incompatible with strong oxidizing agents.
InChI :1S/Ge
InChIKey :GNPVGFCGXDBREM-UHFFFAOYSA-N
SMILES :[Ge]
LogP :4.14 at 20℃
Knoop Microhardness :7644, N/mm2 Microhardness
Modulus of Elasticity :130 GPa, Average of three axes
Poissons Ratio :0.30, Calculated
Shear Modulus :50.0 GPa, Average of three axes.
CAS DataBase Reference :7440-56-4(CAS DataBase Reference)
NIST Chemistry Reference :Germanium(7440-56-4)
EPA Substance Registry System :Germanium (7440-56-4)
Safety Information
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Description
Germanium is a chemical element which naturally reacts and forms complexes with oxygen in nature. It has a high index of refraction and low optical dispersion. Germanium can be combined with silicon to form alloys that are rapidly becoming an important semiconductor material, for use in high speed integrated circuits.More related product prices
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