Zinc Sulfide, ZnS, Wurtzite
Categories: Ceramic; Sulfide/Chalcogenide; Other Engineering Material; Semiconductor

Key Words: Chalcogenide; Semiconductor
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Physical PropertiesMetricEnglishComments
Density 4.10 g/cc0.148 lb/in³
a Lattice Constant 3.814 Å3.814 Å
c Lattice Constant 6.2576 Å6.2576 Å
Formula Units/Cell (Z) 22
Molecular Weight 97.46 g/mol97.46 g/mol
Mechanical PropertiesMetricEnglishComments
Knoop Microhardness 250250kg/mm²; crystal structure not reported
Hardness, Mohs 3.5 - 4.03.5 - 4.0
Modulus of Elasticity 75.0 GPa10900 ksiCrystal structure not specified.
Flexural Strength 103 MPa14900 psi4-pt. test; Crystal structure not specified.
Poissons Ratio 0.270.27Crystal structure not specified.
Shear Modulus 29.5 GPa4280 ksiCalculated
Electrical PropertiesMetricEnglishComments
Magnetic Susceptibility -0.0000250-0.0000250cm^3/mol
Band Gap 3.67 eV3.67 eV
Thermal PropertiesMetricEnglishComments
Heat of Fusion 390 J/g168 BTU/lbCrystal structure not specified.
CTE, linear 7.60 µm/m-°C
@Temperature 20.0 °C
4.22 µin/in-°F
@Temperature 68.0 °F
Crystal structure not specified.
Thermal Conductivity 46.0 W/m-K319 BTU-in/hr-ft²-°F
Melting Point 1827 °C3321 °F
Heat of Formation -206 kJ/mol-206 kJ/mol
Optical PropertiesMetricEnglishComments
Refractive Index 2.3782.378ω, Na
@Wavelength 589.3 nm
@Wavelength 589.3 nm
η, Na
IR Transmittance 72 %72 %peak. absorption coefficient 0.1 at 8 µm/ 0.4 at 12 µm. Crystal structure not specified.
Descriptive Properties
CAS Number1314-98-3
Crystal StructureHexagonalWurtzite (Zincite) Structure - Space Group P 63mc

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.