Na4Bi2O5 — Properties & Data | MatWorld

Na4Bi2O5

ceramic

· JVASP-40469· Na4Bi2O5

Na4Bi2O5 is a bismuth-containing oxide ceramic compound in the sodium-bismuth system, belonging to the family of mixed metal oxides used in functional ceramic applications. This material is primarily of research and developmental interest for applications requiring bismuth oxide's unique optical, electronic, or thermal properties combined with alkali metal stabilization. Its potential applications span photonic materials, radiation shielding, and specialty glass or ceramic systems where bismuth's high atomic number and refractive index offer advantages over conventional alternatives.

radiation shielding ceramicsoptical/photonic materialsspecialty glass additivesthermal barrier coatingsresearch ceramics

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.661	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.094	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.934	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000660	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00132	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-257.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	284.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.549	eV/atom	DFT · OptB88vdW

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.

Na4Bi2O5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental