Sb2O5

Name: Sb2O5
Brand: MatWorld

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

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	18,398.5	ksi	DFT
↳	15,696	ksi	DFT · OptB88vdW
↳	18,188	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.8370	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3600	-	DFT · OptB88vdW
↳	0.2500	-	DFT · PBE
Shear Modulus(G)3 entries	10,888.8	ksi	DFT
↳	5,724.6	ksi	DFT · OptB88vdW
↳	10,919.6	ksi	DFT · PBE

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1958	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.5750	eV	DFT · OptB88vdW
↳	1.582	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.002	-	DFT · OptB88vdW
↳	5.616	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000425	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000783	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-70.38	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	484.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.09	%	DFT · TBmBJ

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.09080	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.272	eV/atom	DFT · OptB88vdW
↳	-1.492	eV/atom	Measured

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Sb2O5 — Properties & Data | MatWorld

Sb2O5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental