CaI2
Calcium iodide · calcium diiodide
Calcium iodide is a stable, insulating salt composed of calcium and iodine that is primarily used in chemical synthesis and specialized industrial processes.
About Calcium iodide
Calcium iodide is a stable inorganic halide compound that functions as a wide-gap insulator. Its electronic structure is characterized by a significant energy separation between the valence and conduction bands, making it a subject of interest for specialized optical and electronic applications.
Due to its thermodynamic stability on the convex hull, this material maintains structural integrity under standard conditions. It is frequently utilized in chemical synthesis and as a precursor for various calcium-containing materials in laboratory research.
Key Properties
Cross-validated computational properties for Calcium iodide, 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.
Applications
Where Calcium iodide is used.
Frequently Asked Questions
Common questions about Calcium iodide, answered from cross-validated data.
What is CaI2?
Calcium iodide is a stable, insulating salt composed of calcium and iodine that is primarily used in chemical synthesis and specialized industrial processes.
What is CaI2 used for?
What is the band gap of CaI2?
Is CaI2 a metal, semiconductor, or insulator?
Is CaI2 thermodynamically stable?
How many polymorphs of CaI2 are known?
What elements does CaI2 contain?
Where does the data for CaI2 come from?
How It Compares
As a primary calcium-based halide, calcium iodide serves as a representative example of alkaline earth metal iodides, providing a baseline for understanding the structural and chemical behavior of this group in solid-state chemistry.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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