NpO2F2 — Properties & Data | MatWorld

NpO2F2

ceramic

· JVASP-97509· NpO2F2

NpO2F2 is a neptunium oxide fluoride ceramic compound that belongs to the actinide oxyfluoride family. This material is primarily of research and nuclear materials science interest rather than widespread industrial use, with potential applications in nuclear fuel chemistry, actinide chemistry studies, and specialized nuclear materials research where understanding neptunium behavior under various chemical conditions is relevant. Engineers and researchers working with advanced nuclear materials or studying actinide compound properties would evaluate this material for its unique chemical stability characteristics within the actinide oxide-fluoride system.

nuclear materials researchactinide compound studiesexperimental ceramicsfuel chemistry characterizationanalytical reference materialsspecialized nuclear science

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Exfoliation Energy(Eexf)	45.28	meV/atom	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2774	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	2.256	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	13.05	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.01667	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.01667	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	3.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000498	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000506	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-97.55	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-99.42	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	17.50	%	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)	0.5067	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.648	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.

NpO2F2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental