Magnesium sulfide

Magnesium sulfide
Names
	Other names Niningerite
Identifiers
CAS Number	12032-36-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	8305407 ;
ECHA InfoCard	100.031.597
EC Number	234-771-1;
PubChem CID	82824;
UNII	TWD834A2KD ;
CompTox Dashboard (EPA)	DTXSID2065179 ;
	InChI InChI=1S/Mg.S/q+2;-2 Key: QENHCSSJTJWZAL-UHFFFAOYSA-N ; InChI=1/Mg.S/q+2;-2 Key: QENHCSSJTJWZAL-UHFFFAOYAO;
	SMILES [Mg+2].[S-2];
Properties
Chemical formula	MgS
Molar mass	56.38 g/mol
Appearance	white to reddish brown powder
Density	2.84 g/cm3
Melting point	2,000 °C (3,630 °F; 2,270 K) approx.
Solubility in water	decomposes
Structure
Crystal structure	Halite (cubic), cF8
Space group	Fm3m, No. 225
Coordination geometry	cubic
Thermochemistry
Heat capacity (C)	45.6 J/mol K
Std molar; entropy (S⦵298)	50.3 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	−347 kJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Source of H2S
Related compounds
Other anions	Magnesium oxide
Other cations	Calcium sulfide; Strontium sulfide; Barium 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

Magnesium sulfide is an inorganic compound with the formula Mg S. It is a white crystalline material but often is encountered in an impure form that is brown and non-crystalline powder. It is generated industrially in the production of metallic iron.