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High Purity Materials
High Purity Chemicals, Sulfur and Metal Manufacturer, Supplier and Distributor, Houston TX
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Cadmium Bromite
Indium(III) Selenide  (In2Se3)
Chemical Formula: GeS2
CAS Number: 12025-34-2
Molecular Weight: 136.75
EC Number: N/A


Purity Available in  99.99%, 99.999%
Shape and particle size Available in powder
Packaging It is packed with Dacron film, then covered with a sealed plastic film bag.
Refractive index N/A
Density 5.81 g/cm3
Melting point 840 °C
Boiling point 1530 °C

Germanium sulfide (GeS2), also known as germanium disulfide or germanium(IV) sulfide, is a white crystalline solid when pure. Notable as the first germanium compound discovered, during analysis of the mineral argyrodite. Preparation of germanium disulfide is achieved through the reaction of germanium tetrachloride and hydrogen sulfide in a solution of hydrochloric acid.


Germanium disulfide, like its close relative germanium monosulfide, offers unique optical and electrical properties. Modern research focuses on nanoparticle preparations of these materials, primarily.

  • Semiconductor. Like many closely related compounds, germanium disulfide is a semiconductor of interest in a variety of emerging technologies. Batteries, solar cells, and similar applications may make thorough use of this material at high purities or as nanoparticles.
  • Optics. The natural optical properties of germanium disulfide make it of interest in a number of photo optical applications, with nanoscale particles showing even greater potential.
  • Glass. Germanium disulfide can be used in bulk to produce chalcogenide glasses.
  • Energy storage. As nanoparticles, both germanium sulfide (GeS) and germanium disulfide (GeS2) show exceptional cycling performance in research for lithium-ion batteries, making both potentially valuable materials in any number of energy storage applications.

AHP Materials offers 99.999% pure germanium sulfide as a standard product. If you require a different preparation, contact our custom order team today.

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     AHP Materials, Inc.
    2935 Westhollow Dr., Houston, TX 77082
    Tel: 281-409-3838  Fax: 281-870-8002
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