Resource
ZnS (Zinc Sulphide Multispectral, CVD)
Physical and optical properties
Transmission Range : |
0.37 to 13.5 μm |
Refractive Index : |
2.20084 at 10 μm |
Reflection Loss : |
24.7% at 10 μm (2 surfaces) |
Absorption Coefficient : |
0.0006 cm-1 at 3.8 μm |
Reststrahlen Peak : |
30.5 μm |
dn/dT : |
+38.7 x 10-6 /°C at 3.39 μm |
dn/dμ = 0 : |
n/a |
Density : |
4.09 g/cc |
Melting Point : |
1827°C (See notes below) |
Thermal Conductivity : |
27.2 W m-1 K-1 at 298K |
Thermal Expansion : |
6.5 x 10-6 /°C at 273K |
Hardness : |
Knoop 160 with 50g indenter |
Specific Heat Capacity : |
515 J Kg-1 K-1 |
Dielectric Constant : |
88 |
Youngs Modulus (E) : |
74.5 GPa |
Shear Modulus (G) : |
n/a |
Bulk Modulus (K) : |
n/a |
Elastic Coefficients : |
Not Avalailable |
Apparent Elastic Limit : |
68.9 MPa (10,000 psi) |
Poisson Ratio : |
0.28 |
Solubility : |
65 x 10-6 g/100g water |
Molecular Weight : |
97.43 |
Class/Structure : |
HIP polycrystalline cubic, ZnS, F42m |
Refractive Index
No = Ordinary Ray
µm |
No |
µm |
No |
µm |
No |
0.4047 |
2.54515 |
0.4358 |
2.48918 |
0.4678 |
2.44915 |
0.480 |
2.43691 |
0.5086 |
2.41279 |
0.5461 |
2.38838 |
0.5876 |
2.36789 |
0.6438 |
2.34731 |
0.6678 |
2.34033 |
0.7065 |
2.33073 |
0.780 |
2.31669 |
0.7948 |
2.31438 |
0.8521 |
2.30659 |
0.8943 |
2.30183 |
1.014 |
2.29165 |
1.1287 |
2.28485 |
1.5296 |
2.27191 |
2.0581 |
2.26442 |
3.000 |
2.25772 |
3.500 |
2.25498 |
4.000 |
2.25231 |
4.500 |
2.24955 |
5.000 |
2.24661 |
8.000 |
2.22334 |
9.000 |
2.22334 |
10.00 |
2.20084 |
11.25 |
2.18317 |
12.00 |
2.17101 |
13.00 |
2.15252 |
|
|
Product Notes