Germanium Granule

Germanium Granule is reprocessed by high purity zone refined Germanium ingot in the vacuum and clean workshop. Its purity is 99.999% min with size range of 1-40 mm. Sino Santech manufactures evaporation grade germanium metal granule, the size of 1mm to 10 mm pieces are in excess of 99.999% pure and can easily be used in vacuum chamber crucibles.

germanium granule, germanium piece
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Molecular Formula: Ge
CAS No.: 7440-56-4
EINECS No.: 231-164-3
Purity: 99.999%
Size: 1mm to 40 mm, or customized
Melting Point: 937.4 °C
Boiling Point: 2,830 °C
Delivery Time: 3-5 days

Supply Capacity: 200 KG/month


● Vacuum chamber crucibles
● Vacuum evaporation and optical coating
● Germanium doped polysilicon films
● Germanium contained alloys


● Purity is 99.999% min with good consistency
● No pollution in production environment, no reduction in purity, no oxidation
● Particle size can be customized and the range can be relatively narrow
● Vacuum packaging to prevent pollution and oxidation, small packaging is also available.
● ISO9001 and ISO14001 certificated manufacturer.
● Great technical capability to be a valued and long-term supplier.