Germanium monosulfide

Germanium monosulfide
Names
	Systematic IUPAC name Germanium(II) sulfide
Identifiers
CAS Number	12025-32-0;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.031.536
PubChem CID	6367215;
CompTox Dashboard (EPA)	DTXSID20923282 ;
	InChI InChI=1S/GeS/c1-2 Key: VDNSGQQAZRMTCI-UHFFFAOYSA-N;
	SMILES S=[Ge];
Properties
Chemical formula	GeS
Molar mass	104.69 g·mol−1
Related compounds
Related compounds	Carbon monosulfide; Germanium monoxide; Germanium disulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Germanium monosulfide or Germanium(II) sulfide is the chemical compound with the formula Ge S. It is a chalcogenide glass and a semiconductor. Germanium sulfide is described as a red-brown powder or black crystals. Germanium(II) sulfide when dry is stable in air, hydrolyzes slowly in moist air but rapidly reacts in water forming Ge(OH)₂ and then GeO. It is one of a few sulfides that can be sublimed under vacuum without decomposition.

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