|
GERMANIUM
(Ge)
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.
GENERAL
PROPERTIES
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Symbol:
|
Ge
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|
Atomic
Number:
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32
|
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Atomic
Weight:
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72.59
|
|
Density:
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5.323
gm/cc
|
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Melting
Point:
|
937.4
oC
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|
Boiling
Point:
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2830
oC
|
|
Thermal
Conductivity:
|
0.602
W/cm/oK
@ 302.93 oK
|
|
Electrical
Resistivity:
|
46
x 106 microhm-cm @ 20 oC
|
|
Electronegativity:
|
1.8
Paulings
|
|
Specific
Heat:
|
0.077
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
68
K-cal/gm
atom at 2830 oC
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|
Heat
of Fusion:
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8.3
Cal/gm mole
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TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
5N+
|
|
Si
|
0.9
|
|
Cu
|
0.5
|
GERMANIUM
POWDER, SHOT, PELLETS, & INGOT
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Material
|
Purity
|
|
Germanium
Pieces 3-12mm
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5N,
6N
|
|
Germanium
Ingot
|
5N,
6N
|
|
Germanium
Powder, -10 Mesh
|
5N,
6N
|
|
Germanium
Powder, -325 Mesh
|
5N,
6N
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Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
GERMANIUM
COMPOUNDS
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Material
|
Purity
|
|
Germanium
Iodide GeI2 , GeI4 -10
Mesh
|
5N
|
|
Germanium
Nitride Ge3O2 -200 Mesh
|
5N
|
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Germanium
Selenide GeSe 1/4" Pieces by Down
|
5N
|
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Germanium
Sulfide GeS2 -100 Mesh
|
5N
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Germanium
Sulfide GeS -20 Mesh
|
5N
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Compounds
are packaged to order and sold by the gram or
kilogram.
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