Gold(I) sulfide

Gold(I) sulfide
Names
	IUPAC name Gold(I) sulfide
	Other names Aurous sulfide
Identifiers
CAS Number	1303-60-2 ;
3D model (JSmol)	Interactive image;
ChemSpider	14028556 ;
ECHA InfoCard	100.013.749
EC Number	215-123-7;
PubChem CID	22904715;
UNII	03VC3O9F7W;
CompTox Dashboard (EPA)	DTXSID2061648 ;
	InChI InChI=1S/2Au.S/q2*+1;-2 Key: YVIYNOINIIHOCG-UHFFFAOYSA-N;
	SMILES [S-2].[Au+].[Au+];
Properties
Chemical formula	Au2S
Molar mass	425.998 g/mol
Density	11 g/cm3
Melting point	240 °C (464 °F; 513 K)
Solubility in water	Insoluble
Related compounds
Other anions	Copper(I) sulfide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Gold(I) sulfide is the inorganic compound with the formula Au₂S. It is the principal sulfide of gold. It decomposes to gold metal and elemental sulfur, illustrating the "nobility" of gold.