Na2US3 — Properties & Data | MatWorld

Na2US3

ceramic

· JVASP-22216· Na2US3

Na₂US₃ is an experimental ceramic compound containing sodium, uranium, and sulfur, belonging to the family of mixed-metal sulfide ceramics. This material exists primarily in research contexts exploring uranium-based ceramics for nuclear fuel applications and solid-state chemistry; it is not established in mainstream industrial production. Engineers and materials scientists investigate such uranium sulfide compounds for potential use in advanced nuclear fuel forms, high-temperature applications, and fundamental studies of actinide chemistry, though practical engineering adoption remains limited due to handling requirements, regulatory constraints, and ongoing material characterization needs.

nuclear fuel researchactinide chemistry studieshigh-temperature ceramicssolid-state chemistry experimentationuranium compound developmentlaboratory-scale synthesis

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	1.110	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	-0.4900	-	DFT · OptB88vdW
Shear Modulus(G)	-220.0	MPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.671	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000308	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000350	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-20.64	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-22.32	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.451	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.

Na2US3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental