P2O5

ceramic
· P2O5

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.

desiccants and moisture controlphosphate glass synthesisoptical fibers and coatingsspecialty ceramicschemical processing catalyststhermal insulation systems

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
eV
eV
Magnetic Moment(μB)
µB
Seebeck Coefficient(S)
µV/K
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)2 entries
eV/atom
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.