Magnesium sulfide

Magnesium sulfide

Names
Other names Niningerite
Identifiers
CAS Number	12032-36-9 Y
3D model (JSmol)	Interactive image
ChemSpider	8305407 N
ECHA InfoCard	100.031.597
EC Number	234-771-1
PubChem CID	82824
UNII	TWD834A2KD Y
CompTox Dashboard (EPA)	DTXSID2065179
InChI InChI=1S/Mg.S/q+2;-2 N Key: QENHCSSJTJWZAL-UHFFFAOYSA-N 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). N verify (what is YN ?) Infobox references

Magnesium sulfide is an inorganic compound with the formula MgS. 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.