Rubidium (Rb) is a soft, highly reactive alkali metal characterized by its low density and exceptional chemical reactivity. Industrial applications are extremely limited due to its extreme reactivity with air and moisture; it is primarily confined to specialized research, niche photoemission applications (photomultiplier tubes, image intensifiers), and experimental work in atomic physics and quantum systems. Engineers would select rubidium only in highly specialized contexts where its unique electronic or optical properties are essential and where the material can be handled in inert or vacuum environments.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3.100 | GPa | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G) | 1.320 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.664 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 6.263 range 0.000–12.53median of 2 measurements | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -7.180 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.000710 | eV/atom | — |