Potassium Iodide (
KI
)| Properties (KI) | |
| Transmission Range | 0.25 - 30 µm |
| Refractive Index | 1.6731 @0.546µm; 1.62 @10.6 µm |
| Reflective Loss | 10.6% @12.0 µm |
| Reststrahlen | 82 - 100 µm |
| Density | 3.13 g/cm3 |
| Melting Point | 682°C |
| Molecular Weight | 166.02 |
| Thermal Conductivity | 2.1 W/(m·K) |
| Specific Heat | 309.8 J/(kg·K) |
| Thermal Expansion | 42.6 · 10-6 @40°C |
| Hardness (Mohs) | 5 |
| Young`s Modulus | 31.49 GPa |
| Shear Modulus | 6.20 GPa |
| Bulk Modulus | 12 GPa |
| Rupture Modulus | |
| Elastic Coefficient | C11 = 27.4; C12 = 4.3; C44 = 3.7 GPa |
| Dielectric Constant | 4.94 @ f = 2 MHz |
| Solubility in Water | 127.5 g / 100g @0°C; 144,5g /100g H2O at 300 K |
| Type of Material | Single crystal, synthetic |
| Crystal Structure | Cubic, NaCl type structure, a0= 7.07 Å |
| Cleavage Planes | (100) |
| Standard diameter | |
| Application | IR spectroscopy |
| Remarks | slightly hygroscopic |
Transmission spectrum
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This symbol denotes crystal grown in-house.