High Purity Germanium
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MATERIAL OVERVIEW

Characteristics: Grayish-white solid.  A p-type semiconductor.  Conductivity depends largely on added impurities.  Attacked by nitric acid and aqua regia, but stable in water, acids, and alkalies in absence of dissolved oxygen.  Low toxicity.

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GENERAL PROPERTIES

Symbol:

Ge

Atomic Number:

32

Atomic Weight:

72.59

Density:

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

Heat of Fusion:

8.3 Cal/gm mole

 

TYPICAL ANALYSES

Impurities in ppm

Material / Purity:

5N+

Si 0.9
Cu 0.5

 

GERMANIUM POWDER, SHOT, PELLETS, & INGOT

Material

Purity

Germanium Pieces 3-12mm 5N, 6N
Germanium Ingot 5N, 6N
Germanium Powder, -10 Mesh 5N, 6N
Germanium Powder, -325 Mesh 5N, 6N

Powder, shot, pellets, and ingots are packaged to order and sold by the gram or kilogram.

 

GERMANIUM COMPOUNDS

Material

Purity

Germanium Iodide GeI2 , GeI4 -10 Mesh 5N
Germanium Nitride Ge3O2 -200 Mesh 5N
Germanium Selenide GeSe 1/4" Pieces by Down 5N
Germanium Sulfide GeS2 -100 Mesh 5N
Germanium Sulfide GeS -20 Mesh 5N

Compounds are packaged to order and sold by the gram or kilogram.

 

Material Safety Data Sheet - MSDS
Germanium MSDS
Technical Data Sheets
Understanding Mesh Sizes
 
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