Germanium (Ge)
Germanium (Ge)
The existence of germanium was predicted by Mendeleev (who called it ekasilicon). It was discovered in 1886.
In its pure state, this metalloid is grayish-white, crystalline, and brittle. It is found in argyrodite (a sulfide of germanium and silver), germanite, zinc ores, coal, and other minerals.
Germanium is a very important semiconductor and is used as a transistor element in electronic applications. It can be used as a catalyst, an alloying agent, and as a phosphor in fluorescent lamps. The element and its oxide are transparent to infrared light and used in IR spectroscopes and detectors. Germanium has also been used in wide-angle camera lenses and microscope objectives.
Germanium pieces, 2cm (0.8in) and down, Puratronic™, 99.999% (metals basis)
CAS: 7440-56-4 Molecular Formula: Ge Molecular Weight (g/mol): 72.63 MDL Number: MFCD00085310 InChI Key: GNPVGFCGXDBREM-UHFFFAOYSA-N Synonym: element,germanio,germanium, metal powder,unii-00072j7xws,powder,germanium, chips trace metals basis,atom,copper metal,germanium, disks, 15mm, thickness 1.0mm, polycrystalline,germanium, powder PubChem CID: 6326954 ChEBI: CHEBI:30441 IUPAC Name: germanium SMILES: [Ge]
Germanium pieces, 3-9mm (0.1-0.4in), 99.999% (metals basis)
CAS: 7440-56-4 Molecular Formula: Ge Molecular Weight (g/mol): 72.63 MDL Number: MFCD00085310 InChI Key: GNPVGFCGXDBREM-UHFFFAOYSA-N Synonym: element,germanio,germanium, metal powder,unii-00072j7xws,powder,germanium, chips trace metals basis,atom,copper metal,germanium, disks, 15mm, thickness 1.0mm, polycrystalline,germanium, powder PubChem CID: 6326954 ChEBI: CHEBI:30441 IUPAC Name: germanium SMILES: [Ge]
Germanium pieces, 2cm (0.8in) & down, 99.9999% (metals basis)
CAS: 7440-56-4 Molecular Formula: Ge Molecular Weight (g/mol): 72.63 MDL Number: MFCD00085310 InChI Key: GNPVGFCGXDBREM-UHFFFAOYSA-N Synonym: element,germanio,germanium, metal powder,unii-00072j7xws,powder,germanium, chips trace metals basis,atom,copper metal,germanium, disks, 15mm, thickness 1.0mm, polycrystalline,germanium, powder PubChem CID: 6326954 ChEBI: CHEBI:30441 IUPAC Name: germanium SMILES: [Ge]
Germanium rod, polycrystalline, 6.35mm (0.25in) dia, 99.9999% (metals basis)
CAS: 7440-56-4 Molecular Formula: Ge Molecular Weight (g/mol): 72.63 MDL Number: MFCD00085310 InChI Key: GNPVGFCGXDBREM-UHFFFAOYSA-N Synonym: element,germanio,germanium, metal powder,unii-00072j7xws,powder,germanium, chips trace metals basis,atom,copper metal,germanium, disks, 15mm, thickness 1.0mm, polycrystalline,germanium, powder PubChem CID: 6326954 ChEBI: CHEBI:30441 IUPAC Name: germanium SMILES: [Ge]