Germanium-74 (Ge-74) – Stable Isotope

Ge-74 is a naturally occurring, stable isotope of germanium valued for its utility in semiconductor research, detector technologies, and nuclear science. It offers excellent properties for enrichment and experimental consistency in advanced applications.

Applications:

• Neutron transmutation doping (NTD) in semiconductor fabrication

• Neutrino and double beta decay experiments

• Radiation detection and gamma spectroscopy

• Materials research and solid-state studies

• Isotope tracing in environmental and geochemical analysis

Chemical purity: >99%

Atomic Number: 32

Atomic Weight: 72.630

Melting Point: 1211.40 K (938.25°C or 1720.85°F)

Boiling Point: 3106 K (2833°C or 5131°F)

Density: 5.323 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Semi-metal

Period Number: 4

Group Number: 14

Group Name: none

Germanium isotopes are mainly used for the production of medical As and Se radioisotopes. Ge-74 is used for the production of As-74, Ge-76 for the production of As-77, Ge-74 for the production of As-73 and Ge-72 for As-72. Ge-70, Ge-72 and Ge-74 can all be used for the production of the medical radioisotope Se-73, although the most common production route is via natural As (As-75). Natural GeF4 is used in the semiconductor pre-amorphisation implant process. The use of Ge-72, in the form of GeF4, improves this process and reduces contamination.

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