H4NO3P
Ammonium dihydrogen phosphate · ADP, Ammonium phosphate monobasic
Ammonium dihydrogen phosphate is a stable, insulating crystalline salt frequently used in optical and electronic devices due to its distinct piezoelectric and structural characteristics.
About Ammonium dihydrogen phosphate
Ammonium dihydrogen phosphate is a thermodynamically stable crystalline compound that functions as a wide-gap insulator. Its robust structural integrity makes it a reliable material for various solid-state applications where electrical insulation and specific optical responses are required.
This material is highly valued for its unique physical properties, which allow it to be integrated into advanced technological components. Its stability ensures consistent performance in environments where precise control over electromagnetic interactions is necessary.
Key Properties
Cross-validated computational properties for Ammonium dihydrogen phosphate, 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 H4NO3P. 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 H4NO3P, 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. |
|---|---|---|---|---|---|
| Cmce (No. 64) | orthorhombic | 5.45 | 0.0000 | -6.200 | 1.75 |
| P21/c (No. 14) | monoclinic | 4.73 | 0.0044 | -6.195 | 1.74 |
| — | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.15 |
Applications
Where Ammonium dihydrogen phosphate is used.
Frequently Asked Questions
Common questions about Ammonium dihydrogen phosphate, answered from cross-validated data.
What is H4NO3P?
Ammonium dihydrogen phosphate is a stable, insulating crystalline salt frequently used in optical and electronic devices due to its distinct piezoelectric and structural characteristics.
What is H4NO3P used for?
What is the band gap of H4NO3P?
Is H4NO3P a metal, semiconductor, or insulator?
Is H4NO3P thermodynamically stable?
What is the crystal structure of H4NO3P?
What is the density of H4NO3P?
How many polymorphs of H4NO3P are known?
What elements does H4NO3P contain?
Where does the data for H4NO3P come from?
How It Compares
As a prominent crystalline material, this compound serves as a foundational example of phosphate-based insulators, demonstrating high stability and predictable electronic behavior that sets a standard for similar functional materials.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
Analyze H4NO3P in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →