CaPO4
CaPO4 is a metastable, semiconducting inorganic compound composed of calcium, phosphorus, and oxygen.
About CaPO4
CaPO4 is a complex inorganic compound composed of calcium, phosphorus, and oxygen. As a semiconducting material, it exhibits electronic properties that distinguish it from standard insulating phosphates, making it a subject of interest for specialized solid-state applications.
Because it exists in a metastable state, this compound requires precise synthesis conditions to stabilize its structure. Its existence across multiple reported structural configurations highlights the structural flexibility inherent in calcium-phosphorus-oxygen systems.
Key Properties
Cross-validated computational properties for CaPO4, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting CaPO4.
Applications
Where CaPO4 is used.
Frequently Asked Questions
Common questions about CaPO4, answered from cross-validated data.
What is CaPO4?
CaPO4 is a metastable, semiconducting inorganic compound composed of calcium, phosphorus, and oxygen.
What is CaPO4 used for?
What is the band gap of CaPO4?
Is CaPO4 a metal, semiconductor, or insulator?
Is CaPO4 thermodynamically stable?
How many polymorphs of CaPO4 are known?
How is CaPO4 synthesized?
What elements does CaPO4 contain?
Where does the data for CaPO4 come from?
How It Compares
As a unique inorganic phase, CaPO4 occupies a distinct niche within the broader landscape of calcium phosphate materials. Unlike more common, highly stable calcium phosphates often utilized in biological or structural contexts, this specific stoichiometry represents a more elusive, metastable semiconducting variant that provides researchers with a different electronic profile for fundamental materials exploration.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze CaPO4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →