KAsF6

ceramic

· KAsF6

KAsF₆ (potassium arsenic hexafluoride) is an inorganic ionic ceramic compound belonging to the hexafluoride salt family, characterized by a face-centered cubic crystal structure. This material is primarily used in specialized electrochemical and optical applications, particularly in high-voltage electrical systems and as a precursor or dopant in advanced ceramic synthesis. KAsF₆ is notable for its thermal stability and ionic conductivity properties, making it relevant for electrolyte research and fluoride-based glass applications, though it remains more common in laboratory and niche industrial settings than in mainstream engineering.

high-voltage insulators and electrolytesoptical materials researchfluoride glass precursorselectrochemical systemsspecialized ceramics synthesislaboratory analytical instruments

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,918.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	2,327.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1208	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	5.095	eV	DFT · OptB88vdW
↳	6.767	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	4.858	-	DFT · OptB88vdW
↳	6.620	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.243	-	DFT · OptB88vdW
↳	1.864	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000902	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000222	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-206.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	498.4	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)	0.00640	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.487	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.

KAsF6 — Properties & Data | MatWorld

KAsF6

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental