| Transmission Range | 0.20 to 25 μm |
| Refractive Index | 1.46 at 10.6 μm |
| Reflection Loss | 6.8% at 10.6 μm (2 surfaces) |
| Absorption Coefficient | 1 x 10-3 cm-1 @ 10.6 μm |
| Reststrahlen Peak | n/a |
| dn/dT | -39 x 10-6 K-1 |
| dn/dμ | n/a |
| Density | 2.8 g/cc |
| Melting Point | 715°C |
| Thermal Conductivity | 7.6 W m-1 K-1 |
| Thermal Expansion | 36 x 10-6/°C @ 283 K |
| Hardness | n/a |
| Specific Heat Capacity | 418 J Kg-1 K-1 @ 283 K |
| Dielectric Constant | 55 |
| Young's Modulus (E) | n/a |
| Shear Modulus (G) | n/a |
| Bulk Modulus (K) | 16.3 GPa |
| Elastic Coefficients | C11 = 36.4; C12 = 6.3; C44 = 4.7 |
| Apparent Elastic Limit | n/a |
| Poisson Ratio | n/a |
| Solubility | 77 g/100 g water |
| Molecular Weight | 120.92 |
| Class/Structure | Cubic FCC, NaCl, Fm3m, (100) cleavage |
| μm | No | μm | No | μm | No |
|---|---|---|---|---|---|
| 0.248 | 1.60 | 0.633 | 1.49 | 10.6 | 1.46 |
| 0.351 | 1.53 | 1.06 | 1.48 | ||
| 0.488 | 1.50 | 1.55 | 1.48 | ||
| 0.590 | 1.49 | 2.80 | 1.48 |
Rubidium Chloride is produced by the sealed-ampoule Stockbarger technique.