Phosphorus pentoxide (P₂O₅) is an inorganic ceramic compound and the anhydride form of phosphoric acid, commonly encountered as a white, deliquescent powder or glassy solid. It serves primarily as a desiccant, phosphorus source, and glass-forming component in specialized ceramic and optical applications, where its strong hygroscopic properties and ability to form stable glassy phases make it valuable in moisture-sensitive environments and high-performance optical systems. Engineers select P₂O₅-based compositions for applications requiring exceptional water absorption capacity, thermal stability, or incorporation into phosphate glass networks that demand corrosion resistance or specific refractive properties.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.879 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.000 | eV | — | ||
| ↳ | 5.397 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -140.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.228 | eV/atom | — | ||
| ↳ | -2.006 | eV/atom | — |