Na3NpO6 — Properties & Data | MatWorld

Na3NpO6

ceramic

· JVASP-119030· Na3NpO6

Na3NpO6 is an actinide-bearing ceramic compound containing sodium, neptunium, and oxygen, belonging to the family of synthetic actinide oxides studied primarily in nuclear materials research. This material is of significant interest in nuclear fuel cycles and radioactive waste management, where neptunium compounds serve as model systems for understanding actinide behavior, immobilization strategies, and long-term stability in geological repositories. While not widely deployed in commercial applications, Na3NpO6 and related neptunium oxides are notable for their potential to validate waste form durability and inform the design of advanced ceramics for safely confining transuranic elements.

nuclear waste immobilizationactinide researchfuel cycle materialsgeological repository formsactinide behavior studiessynthetic ceramics development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.652	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	3.522	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1311	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.986	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.

Na3NpO6

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental