| Transmission Range | 0.22 to 40 μm |
| Refractive Index | 1.525 at 10 μm (1) |
| Reflection Loss | 8.2% at 10 μm (2 surfaces) |
| Absorption Coefficient | 1.6 x 10-3 cm-1 @ 10.6 μm |
| Reststrahlen Peak | n/a |
| dn/dT | -45 x 10-6 K-1 |
| dn/dμ | n/a |
| Density | 3.35 g/cc |
| Melting Point | 682°C |
| Thermal Conductivity | 12.2 W m-1 K-1 @ 378 K |
| Thermal Expansion | 36.98 x 10-6/°C @ 273 K |
| Hardness | n/a |
| Specific Heat Capacity | 311 J Kg-1 K-1 |
| Dielectric Constant | 55 |
| Young's Modulus (E) | n/a |
| Shear Modulus (G) | n/a |
| Bulk Modulus (K) | 13.7 GPa |
| Elastic Coefficients | C11 = 31.5; C12 = 4.8; C44 = 3.82 |
| Apparent Elastic Limit | n/a |
| Poisson Ratio | n/a |
| Solubility | 98 g/100 g water |
| Molecular Weight | 165.38 |
| Class/Structure | Cubic FCC, NaCl, Fm3m, (100) cleavage |
| μm | No | μm | No | μm | No |
|---|---|---|---|---|---|
| 0.24 | 1.754 | 0.90 | 1.540 | 25.0 | 1.489 |
| 0.35 | 1.603 | 1.00 | 1.538 | 30.0 | 1.469 |
| 0.40 | 1.583 | 2.00 | 1.533 | 35.0 | 1.444 |
| 0.50 | 1.563 | 5.00 | 1.530 | 40.0 | 1.412 |
| 0.60 | 1.552 | 10.0 | 1.525 | ||
| 0.70 | 1.546 | 15.0 | 1.517 | ||
| 0.80 | 1.540 | 20.0 | 1.505 |
Rubidium Bromide is produced by the sealed-ampoule Stockbarger technique.
REFERENCES:
(1) Handbook Optical Constants, ed Palik, V3, ISBN 0-12-544423-0