Na2P2PbO7 — Properties & Data | MatWorld

Na2P2PbO7

ceramic

· JVASP-26762· Na2P2PbO7

Na2P2PbO7 is a lead-containing phosphate ceramic compound combining sodium, phosphorus, and lead oxides into a dense crystalline structure. This material belongs to the family of pyrophosphate ceramics and is primarily investigated for applications requiring high-density ceramics with moderate stiffness; it is not widely commercialized in mainstream engineering but appears in specialized research contexts for nuclear waste immobilization, radiation shielding, and advanced ceramic composites where lead incorporation is deliberately leveraged for density and radiation attenuation properties.

nuclear waste immobilizationradiation shielding ceramicsdense ceramic compositesresearch-phase materialslead-based phosphate ceramicsspecialized industrial ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	45.39	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	25.41	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.426	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.489	eV	DFT · OptB88vdW
↳	6.222	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.245	-	DFT · OptB88vdW
↳	2.478	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000738	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000299	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-207.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	379.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.235	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.

Na2P2PbO7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental