Sb2O5

ceramic
· Sb2O5

Antimony pentoxide (Sb2O5) is an inorganic ceramic oxide compound used primarily as a flame retardant additive and in specialized optical and electronic applications. It is valued in polymer composites and coatings for its ability to suppress flammability while maintaining material processability, and finds niche use in catalytic systems and advanced ceramics where chemical stability and high-temperature performance are required. Engineers select this material when flame retardancy must be achieved without halogenated additives, making it relevant for industries with strict environmental or toxicological constraints.

flame retardant additivespolymer compositescoatings and paintscatalytic applicationselectronic ceramicshigh-temperature materials

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
125.4
GPa
126.9
GPa
108.2
GPa
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
0.8370
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
Pa
Poisson's Ratio(ν)2 entries
0.2500
-
0.3600
-
Shear Modulus(G)3 entries
75.29
GPa
75.08
GPa
39.47
GPa
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
Density(ρ)
5.419
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.4670
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
-85.17
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.09080
eV/atom
Formation Energy(ΔHf)2 entries
-1.492
eV/atom
-1.272
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.