| OPTICAL |
|
| |
Transmission Range |
0.12 to 8.5 microns |
| |
Refractive Index |
1.3943 at 0. 5 microns |
| |
Reflection Loss |
5.4% at 0.5 µm (2 surfaces) |
| |
Restrahlen Peak |
25 microns |
| |
dN/dT |
-12.7 x 10-6/ °C at 0.6 microns |
| PHYSICAL |
|
| |
Density |
2.63905 g/cm3 |
| |
Melting Point |
870 °C |
| |
Thermal Conductivity |
4. 01 W/(m K) at 41 °C |
| |
Thermal Expansion |
37 x 10-6/ °C |
| |
Hardness |
Knoop 102 to 113 kg/mm2 with 600g indenter |
| |
Specific Heat Capacity |
1562 J/(kg K) at 10 °C |
| |
Dielectric Constant |
9.1 at 25 °C |
| |
Young's Modulus (E) |
64.79 GPa |
| |
Shear Modulus (G) |
55.14 GPa |
| |
Bulk Modulus (K) |
62.03 GPa |
| |
Elastic Coefficients |
C11=97.4 C12=40.4 C44=55.4 |
| |
Apparent Elastic Limit |
11.2 MPa |
| |
Poisson Ratio |
0.326 |
| CHEMICAL |
|
| |
Solubility |
0.27g/l00g water at 20 °C |
| |
Molecular Weight |
25.94 |
| |
Class/Structure |
FCC, NaCl structure. Cleavage (100) |
