RbNO3
Rubidium nitrate · Rubidium salt of nitric acid
Rubidium nitrate is a stable, insulating salt composed of rubidium, nitrogen, and oxygen, frequently utilized in pyrotechnic and optical applications.
About Rubidium nitrate
Rubidium nitrate is a crystalline inorganic compound that exists as a wide-band-gap insulator. As a thermodynamically stable phase, it occupies a secure position on the convex hull, indicating robust structural integrity under standard conditions.
This material is primarily valued for its role in chemical synthesis and specialized industrial applications. Its stability and electronic characteristics make it a reliable precursor for researchers exploring rubidium-based systems and optical materials.
Key Properties
Cross-validated computational properties for Rubidium nitrate, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for RbNO3, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| R3m (No. 160) | trigonal | 3.04 | 0.0000 | -6.254 | 2.57 |
| R3m (No. 160) | trigonal | 3.63 | 0.0029 | -9.232 | 2.87 |
| P31 (No. 144) | trigonal | 3.25 | 0.0170 | -6.237 | 3.25 |
| Pmmn (No. 59) | orthorhombic | 3.12 | 0.0175 | -6.236 | 3.27 |
| R32 (No. 155) | trigonal | 2.98 | 0.0210 | -6.233 | 2.41 |
| R-3c (No. 167) | trigonal | 3.04 | 0.0231 | -6.230 | 2.69 |
| R32 (No. 155) | trigonal | 3.61 | 0.0344 | -9.200 | 2.47 |
| P32 (No. 145) | trigonal | 3.13 | 0.0394 | -6.214 | 2.53 |
| R-3c (No. 167) | Trigonal | — | — | — | 2.61 |
| Pmmn (No. 59) | Orthorhombic | — | — | — | 3.08 |
| R-3c (No. 167) | Trigonal | — | — | — | 2.59 |
| Pmmn (No. 59) | — | — | — | — | — |
Applications
Where Rubidium nitrate is used.
Frequently Asked Questions
Common questions about Rubidium nitrate, answered from cross-validated data.
What is RbNO3?
Rubidium nitrate is a stable, insulating salt composed of rubidium, nitrogen, and oxygen, frequently utilized in pyrotechnic and optical applications.
What is RbNO3 used for?
What is the band gap of RbNO3?
Is RbNO3 a metal, semiconductor, or insulator?
Is RbNO3 thermodynamically stable?
What is the crystal structure of RbNO3?
What is the density of RbNO3?
How many polymorphs of RbNO3 are known?
What elements does RbNO3 contain?
Where does the data for RbNO3 come from?
How It Compares
As a distinct nitrate salt, rubidium nitrate serves as a key representative of alkali metal nitrates, functioning as a foundational reference point for understanding the structural and electronic behavior of this chemical family.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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