MgWO4
magnesium tungstate · magnesium wolframate
Magnesium tungstate is a stable, insulating compound primarily used for its effective luminescent properties in phosphor and detection technologies.
About magnesium tungstate
Magnesium tungstate is a thermodynamically stable inorganic compound that exists as a wide-gap insulator. Its structural integrity and electronic properties make it a highly reliable material for applications requiring consistent performance under various environmental conditions.
Due to its robust nature and well-documented structural characteristics, this compound serves as a foundational material in optical research. It is frequently utilized in specialized lighting applications and as a phosphor material for high-energy radiation detection.
Key Properties
Cross-validated computational properties for magnesium tungstate, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of MgWO4. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for MgWO4, 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. |
|---|---|---|---|---|---|
| P2/c (No. 13) | monoclinic | 3.68 | 0.0000 | -8.292 | 6.87 |
| — | — | 3.37 | 0.0000 | -2.703 | — |
| P2/c (No. 13) | monoclinic | 2.83 | 0.0000 | -2.667 | — |
| — | — | 3.50 | 0.0019 | -2.701 | — |
| — | — | 3.56 | 0.0056 | -2.697 | — |
| P2/c (No. 13) | monoclinic | 0.66 | 0.0116 | -2.656 | — |
| P2/c (No. 13) | monoclinic | 3.30 | 0.0269 | -8.266 | 5.90 |
| — | — | 3.59 | 0.0811 | -2.622 | — |
| — | — | 3.27 | 0.1133 | -2.589 | — |
| P2/c (No. 13) | monoclinic | 3.24 | 0.1279 | -8.164 | 6.25 |
| — | — | 1.33 | 0.1420 | -2.561 | — |
| P2/c (No. 13) | monoclinic | 0.52 | 0.1649 | -2.502 | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting MgWO4.
Applications
Where magnesium tungstate is used.
Frequently Asked Questions
Common questions about magnesium tungstate, answered from cross-validated data.
What is MgWO4?
Magnesium tungstate is a stable, insulating compound primarily used for its effective luminescent properties in phosphor and detection technologies.
What is MgWO4 used for?
What is the band gap of MgWO4?
Is MgWO4 a metal, semiconductor, or insulator?
Is MgWO4 thermodynamically stable?
What is the crystal structure of MgWO4?
What is the density of MgWO4?
How many polymorphs of MgWO4 are known?
How is MgWO4 synthesized?
What elements does MgWO4 contain?
Where does the data for MgWO4 come from?
How It Compares
As a standalone material in its class, magnesium tungstate is valued for its exceptional thermodynamic stability and predictable insulating behavior, which distinguish it as a reliable candidate for advanced optoelectronic and sensing applications.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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