GERMANIUM metal/metalloid ~ **purity 99.99%** ~ # 6

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High purity GERMANIUM, 99.99% purity

Germanium Germanium Germanium Germanium Germanio Germanio Germanium Germânio

Small sample of Ge

Approx ~ 4.8g

Approx size - 21mm

Germanium is a grey-white metalloid, and in its pure state is crystalline and brittle, retaining its lustre in air at room temperature. It is a very important semiconductor material. Zone-refining techniques have led to production of crystalline germanium for semiconductor use with an impurity of only one part in 10 -10 .

Certain germanium compounds have a clear activity against certain bacteria, which makes them of interest as chemotherapeutic agents.

GERMANIUM

Symbol: Ge
Atomic Number: 32
Atomic Weight: 72.61
Element Classification: Semimetallic
Discovered By: Clemens Winkler
Discovery Date: 1886 (Germany)
Name Origin: Latin: Germania (Germany).
Density (g/cc): 5.323
Melting Point (°K): 1210.6
Boiling Point (°K): 3103
Appearance: Grayish-white metal
Atomic Radius (pm): 137
Atomic Volume (cc/mol): 13.6
Covalent Radius (pm): 122
Ionic Radius: 53 (+4e) 73 (+2e)
Specific Heat (@20°C J/g mol): 0.322
Fusion Heat (kJ/mol): 36.8
Evaporation

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