KAs2F7 — Properties & Data | MatWorld

KAs2F7

ceramic

· JVASP-62522· KAs2F7

KAs₂F₇ is an inorganic fluoride ceramic compound belonging to the potassium arsenic fluoride family. This material is primarily of research interest in solid-state chemistry and materials science, with potential applications in fluoride-based ionic conductors, optical components, and specialized ceramics where fluoride stability and chemical resistance are advantageous. Its relatively high density and fluoride composition make it a candidate material for applications requiring corrosion resistance or specific optical/thermal properties, though it remains largely in the experimental domain rather than mainstream industrial production.

fluoride ceramics researchionic conductor developmentoptical materials (experimental)corrosion-resistant coatingssolid-state chemistry compoundshigh-temperature ceramics (research)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.380	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	4.933	eV	DFT · OptB88vdW
↳	7.170	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.673	-	DFT · OptB88vdW
↳	2.018	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000715	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000685	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-308.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	413.6	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.

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)	-2.408	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.

KAs2F7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental