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ChemicalBook >> CAS DataBase List >> Germanium

Germanium

Germanium price.
  • $40.4 - $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)
128 prices
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  • Chem-Impex
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  • ManufacturerChem-Impex
  • Product number47080
  • Product descriptionGermanium nanopowder (20-50 nm) ≥99.9%(Tracemetalsbasis)
  • Packaging5G
  • Price$405
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number47079
  • Product descriptionGermanium nanopowder (200 nm) ≥99.9%(Tracemetalsbasis)
  • Packaging25G
  • Price$429.4
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number47080
  • Product descriptionGermanium nanopowder (20-50 nm) ≥99.9%(Tracemetalsbasis)
  • Packaging25G
  • Price$1004.4
  • Updated2026-05-19
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  • ManufacturerChem-Impex
  • Product number47079
  • Product descriptionGermanium nanopowder (200 nm) ≥99.9%(Tracemetalsbasis)
  • Packaging100G
  • Price$1313.9
  • Updated2026-05-19
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  • ManufacturerProChem
  • Product number1909
  • Product descriptionGermanium, powder, -10 Mesh 99.999%
  • Packaging50g
  • Price$635
  • Updated2026-05-25
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  • ManufacturerProChem
  • Product number1909
  • Product descriptionGermanium,powder,-10MeshProduct#Purity 99.999%
  • Packaging50gm
  • Price$585
  • Updated2021-12-16
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  • ManufacturerProChem
  • Product number1909
  • Product descriptionGermanium, powder, -10 Mesh Product # Purity 99.999%
  • Packaging50gm
  • Price$585
  • Updated2021-12-16
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  • ManufacturerProChem
  • Product number1906
  • Product descriptionGermanium, pieces, 3-9 mm 99.999%
  • Packaging50g
  • Price$600
  • Updated2026-05-25
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  • ManufacturerProChem
  • Product number1906
  • Product descriptionGermanium,pieces,3-9mmProduct#Purity 99.999%
  • Packaging10gm
  • Price$75
  • Updated2021-12-16
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  • ManufacturerProChem
  • Product number1906
  • Product descriptionGermanium, pieces, 3-9 mm Product # Purity 99.999%
  • Packaging10gm
  • Price$75
  • Updated2021-12-16
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  • ManufacturerProChem
  • Product number1909
  • Product descriptionGermanium, powder, -10 Mesh 99.999%
  • Packaging10g
  • Price$135
  • Updated2026-05-25
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  • ManufacturerProChem
  • Product number1906
  • Product descriptionGermanium, pieces, 3-9 mm 99.999%
  • Packaging10g
  • Price$150
  • Updated2026-05-25
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  • 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
Manufacturer Product number Product description Packaging Price Updated Buy
Chem-Impex 47080 Germanium nanopowder (20-50 nm) ≥99.9%(Tracemetalsbasis) 5G $405 2026-05-19 Buy
Chem-Impex 47079 Germanium nanopowder (200 nm) ≥99.9%(Tracemetalsbasis) 25G $429.4 2026-05-19 Buy
Chem-Impex 47080 Germanium nanopowder (20-50 nm) ≥99.9%(Tracemetalsbasis) 25G $1004.4 2026-05-19 Buy
Chem-Impex 47079 Germanium nanopowder (200 nm) ≥99.9%(Tracemetalsbasis) 100G $1313.9 2026-05-19 Buy
ProChem 1909 Germanium, powder, -10 Mesh 99.999% 50g $635 2026-05-25 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
ProChem 1906 Germanium, pieces, 3-9 mm 99.999% 50g $600 2026-05-25 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 99.999% 10g $135 2026-05-25 Buy
ProChem 1906 Germanium, pieces, 3-9 mm 99.999% 10g $150 2026-05-25 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

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)

Safety Information

Symbol(GHS): Flame (GHS02)Health Hazard (GHS08)Environment (GHS09)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
Danger
Warning
P210, P240,P241, P280, P370+P378
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240 Ground/bond container and receiving equipment.
P273 Avoid release to the environment.
P308+P313 IF exposed or concerned: Get medical advice/attention.

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.

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