KFeF4 — Properties & Data | MatWorld

KFeF4

metal

· JVASP-57802· KFeF4

KFeF₄ is an inorganic fluoride compound containing potassium and iron, belonging to the family of metal fluorides with potential electrochemical and catalytic applications. This material is primarily of research interest rather than established industrial production, with potential use in energy storage systems (particularly fluoride-ion batteries) and as a catalyst precursor, where fluoride compounds are valued for their high electrochemical stability and unique bonding characteristics.

experimental energy storagefluoride-ion battery researchcatalysis applicationssolid-state ionic conductorshigh-temperature electrochemistry

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.077	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.2030	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	17.73	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.02333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.02333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	9.909	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000207	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000393	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	84.58	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	180.8	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.551	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

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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.

KFeF4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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