Zinc sulfide

Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite. Although this mineral is usually black because of various impurities, the pure material is white, and it is widely used as a pigment. In its dense synthetic form, zinc sulfide can be transparent, and it is used as a window for visible optics and infrared optics.

Zinc sulfide

ZnS powders containing different concentrations of sulfur vacancies
Names
Other names
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.866
RTECS number
  • ZH5400000
UNII
  • InChI=1S/S.Zn/q-2;+2
    Key: DRDVZXDWVBGGMH-UHFFFAOYSA-N
  • [Zn+2].[S-2]
Properties
ZnS
Molar mass 97.474 g/mol
Density 4.090 g/cm3
Melting point 1,850 °C (3,360 °F; 2,120 K) (sublime)
negligible
Band gap 3.54 eV (cubic, 300 K)
3.91 eV (hexagonal, 300 K)
2.3677
Structure
see text
Tetrahedral (Zn2+)
Tetrahedral (S2−)
Thermochemistry
−204.6 kJ/mol
Hazards
NFPA 704 (fire diamond)
1
0
0
Flash point Non-flammable
Safety data sheet (SDS) ICSC 1627
Related compounds
Other anions
Zinc oxide
Zinc selenide
Zinc telluride
Other cations
Cadmium sulfide
Mercury sulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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