透射镜片材料 — Rubidium Iodide (RbI) 碘化铷 （RbI）
| Transmission Range % | 50 |
| Transmission Range | 0,26 – 50 µm (thickness 2mm) |
| Refractive Index | 1,64233 @633 nm |
| Reflection Loss | 5,44% @10 µm |
| Density | 3,55 g/cm3 |
| Melting point | 656°C |
| Molecular Weight | 212,37 |
| Thermal Conductivity | 9,9 W/(m·K) |
| Spec. Heat Capacity | 242,6 J/(kg·K) @10°C |
| Thermal Expansion | 39 · 10-6/K @293K |
| Elastic Coefficient | C11 = 25,6; C12 = 3,7; C44 = 2,79 GPa |
| Dielectric Constant | 4,94 (298K) |
| Solubility in Water | 165 g/100 g @25°C |
| Crystal Structure | single crystal, synthetic |
| Crystal Type | cubic, NaCl type structure, a0 = 7,342 Å |
| Cleavage Planes | (100) |
| Application | IR Optics (rarely used) |
