Rb
metal· JVASP-21207· Rb
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.
photomultiplier tubesimage intensifiersquantum physics researchatomic vapor experimentsspecialized vacuum electronicslaboratory research only
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3.100 | GPa | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G) | 1.320 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.664 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.000710 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.