Na4O8W2
Sodium tungstate · Sodium wolframate
Sodium tungstate is a water-soluble inorganic compound that serves as a primary source of tungsten in various chemical processes. It is frequently utilized as a precursor for the synthesis of other tungsten-based materials and as a chemical reagent in laboratory and industrial settings.
Key Properties
Cross-validated computational properties for Sodium 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 Na4O8W2, 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. |
|---|---|---|---|---|---|
| Fd-3m (No. 227) | cubic | 4.75 | 0.0000 | -7.277 | 5.22 |
| Fd-3m (No. 227) | cubic | — | — | — | 1.28 |
| Fd-3m (No. 227) | — | — | — | — | — |
| — | — | — | — | — | 3.70 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
Applications
Where Sodium tungstate is used.
Frequently Asked Questions
Common questions about Sodium tungstate, answered from cross-validated data.
What is Na4O8W2?
Sodium tungstate is a water-soluble inorganic compound that serves as a primary source of tungsten in various chemical processes. It is frequently utilized as a precursor for the synthesis of other tungsten-based materials and as a chemical reagent in laboratory and industrial settings.
What is Na4O8W2 used for?
What is the band gap of Na4O8W2?
Is Na4O8W2 a metal, semiconductor, or insulator?
Is Na4O8W2 thermodynamically stable?
What is the crystal structure of Na4O8W2?
What is the density of Na4O8W2?
How many polymorphs of Na4O8W2 are known?
What elements does Na4O8W2 contain?
Where does the data for Na4O8W2 come from?
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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