BaWO4
Barium tungstate · Barium wolframate
Barium tungstate is a stable, insulating crystalline compound widely utilized for its optical properties in high-tech sensing and lighting applications.
About Barium tungstate
Barium tungstate is a chemically stable inorganic compound that exists on the thermodynamic convex hull, indicating high structural integrity. As a wide-band-gap insulator, it possesses electronic properties that make it highly suitable for specialized optical and photonic technologies.
This material is recognized for its structural versatility, with numerous reported crystalline arrangements across scientific databases. Its stability and predictable electronic behavior ensure it remains a reliable candidate for high-performance device engineering.
Key Properties
Cross-validated computational properties for Barium tungstate, aggregated across 4 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 BaWO4, 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. |
|---|---|---|---|---|---|
| I41/a (No. 88) | tetragonal | 4.88 | 0.0000 | -8.507 | 6.25 |
| C2/c (No. 15) | monoclinic | 4.73 | 0.0029 | -8.504 | 6.09 |
| P21/c (No. 14) | monoclinic | 3.67 | 0.0100 | -8.497 | 6.83 |
| I41 (No. 80) | tetragonal | 4.56 | 0.0192 | -8.488 | 6.02 |
| I41/amd (No. 141) | tetragonal | 4.49 | 0.0210 | -8.486 | 5.26 |
| P21/m (No. 11) | monoclinic | 2.69 | 0.0519 | -8.455 | 6.81 |
| Cmcm (No. 63) | orthorhombic | 2.08 | 0.0571 | -8.450 | 7.02 |
| I41/a (No. 88) | Tetragonal | — | — | — | 6.17 |
| I41/a (No. 88) | — | — | — | — | — |
| P21/m (No. 11) | Monoclinic | — | — | — | 7.61 |
| I41/amd (No. 141) | Tetragonal | — | — | — | 5.26 |
| I41 (No. 80) | Tetragonal | — | — | — | 6.57 |
Applications
Where Barium tungstate is used.
Frequently Asked Questions
Common questions about Barium tungstate, answered from cross-validated data.
What is BaWO4?
Barium tungstate is a stable, insulating crystalline compound widely utilized for its optical properties in high-tech sensing and lighting applications.
What is BaWO4 used for?
What is the band gap of BaWO4?
Is BaWO4 a metal, semiconductor, or insulator?
Is BaWO4 thermodynamically stable?
What is the crystal structure of BaWO4?
What is the density of BaWO4?
How many polymorphs of BaWO4 are known?
What elements does BaWO4 contain?
Where does the data for BaWO4 come from?
How It Compares
As a standalone representative of its chemical family, barium tungstate serves as a benchmark for stability and insulating performance. It occupies a critical role in materials research where robust, wide-gap inorganic hosts are required for functional applications.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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