B4PbO7 — Properties & Data | MatWorld

B4PbO7

Name: B4PbO7
Brand: MatWorld

ceramic

· B4PbO7

B₄PbO₇ is a lead borate ceramic compound belonging to the family of heavy-metal oxide ceramics, formed through the combination of boron oxide and lead oxide phases. This material is primarily of research and specialized industrial interest, used in applications requiring high-density ceramics with specific optical or radiation-shielding properties. Lead borate ceramics are valued in niche applications where their density and lead content provide benefits for radiation attenuation or as precursors for glass-ceramic formulations, though their lead content restricts use in many consumer and biomedical applications.

radiation shieldingheavy-metal ceramicsglass-ceramic precursorsspecialized optical applicationsresearch compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.767	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.363	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	20.24	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.953	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.4933	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.790	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.8110	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000664	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00123	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-122.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	298.4	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.418	eV/atom	DFT · OptB88vdW
↳	-2.468	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.

B4PbO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental