Ag2SO4
Silver sulfate · Silver(I) sulfate
Silver sulfate is a stable, semiconducting inorganic salt widely used in laboratory and industrial chemical applications.
About Silver sulfate
Silver sulfate is a thermodynamically stable inorganic compound that exists on the convex hull, indicating high structural integrity. As a semiconducting material, it serves as a key silver-containing species in various chemical processes and analytical applications.
Its structural diversity is evidenced by multiple reported configurations across scientific databases. This versatility makes it a significant subject for researchers studying silver-based salts and their roles in specialized chemical synthesis and material science.
Key Properties
Cross-validated computational properties for Silver sulfate, 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 Ag2SO4. 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 Ag2SO4, 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. |
|---|---|---|---|---|---|
| — | — | 1.46 | 0.0000 | -1.134 | — |
| Fddd (No. 70) | orthorhombic | 1.29 | 0.0000 | -0.911 | — |
| Fddd (No. 70) | orthorhombic | 1.23 | 0.0000 | -5.487 | 5.43 |
| P1 (No. 1) | triclinic | 1.32 | 0.0306 | -5.457 | 5.09 |
| — | — | 1.23 | 0.0578 | -1.076 | — |
| Fddd (No. 70) | orthorhombic | — | — | — | 5.52 |
| Fddd (No. 70) | orthorhombic | — | — | — | 5.46 |
| P1 (No. 1) | triclinic | — | — | — | 5.09 |
| P1 (No. 1) | triclinic | — | — | — | 5.32 |
| C2 (No. 5) | monoclinic | — | — | — | 5.15 |
Applications
Where Silver sulfate is used.
Frequently Asked Questions
Common questions about Silver sulfate, answered from cross-validated data.
What is Ag2SO4?
Silver sulfate is a stable, semiconducting inorganic salt widely used in laboratory and industrial chemical applications.
What is Ag2SO4 used for?
What is the band gap of Ag2SO4?
Is Ag2SO4 a metal, semiconductor, or insulator?
Is Ag2SO4 thermodynamically stable?
What is the crystal structure of Ag2SO4?
How many polymorphs of Ag2SO4 are known?
What elements does Ag2SO4 contain?
Where does the data for Ag2SO4 come from?
How It Compares
As a distinct silver-based sulfate, this compound occupies a unique niche in inorganic chemistry, serving as a primary reagent for silver-based applications where structural stability and predictable semiconducting behavior are required.
Data sources & attribution
- 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)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- 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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