H2O10P2Zn4
Hopeite · alpha-hopeite
Hopeite is a hydrated zinc phosphate mineral that typically forms as a secondary mineral in oxidized zones of zinc-bearing ore deposits. It is frequently studied for its role in phosphate conversion coatings, which are applied to metal surfaces to improve corrosion resistance and paint adhesion.
Key Properties
Cross-validated computational properties for Hopeite, 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 H2O10P2Zn4, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 3.24 | 0.0019 | -6.133 | 3.97 |
| Pnnm (No. 58) | orthorhombic | 3.04 | 0.0111 | -6.123 | 3.86 |
| P-1 (No. 2) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 2.07 |
| — | — | — | — | — | 4.09 |
Applications
Where Hopeite is used.
Frequently Asked Questions
Common questions about Hopeite, answered from cross-validated data.
What is H2O10P2Zn4?
Hopeite is a hydrated zinc phosphate mineral that typically forms as a secondary mineral in oxidized zones of zinc-bearing ore deposits. It is frequently studied for its role in phosphate conversion coatings, which are applied to metal surfaces to improve corrosion resistance and paint adhesion.
What is H2O10P2Zn4 used for?
What is the band gap of H2O10P2Zn4?
Is H2O10P2Zn4 a metal, semiconductor, or insulator?
Is H2O10P2Zn4 thermodynamically stable?
What is the crystal structure of H2O10P2Zn4?
What is the density of H2O10P2Zn4?
How many polymorphs of H2O10P2Zn4 are known?
What elements does H2O10P2Zn4 contain?
Where does the data for H2O10P2Zn4 come from?
Related Compounds
Other Transition-Metal Phosphates in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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