KNaThF6 — Properties & Data | MatWorld

KNaThF6

ceramic

· JVASP-25797· KNaThF6

KNaThF6 is a complex fluoride ceramic compound containing potassium, sodium, thorium, and fluorine—a member of the elpasolite fluoride family. This material is primarily of research and specialized industrial interest, studied for applications requiring high thermal stability and chemical inertness in corrosive fluorine-bearing environments. Its selection depends on specific requirements for refractory behavior, radiation shielding, or specialized optical/electronic applications where conventional ceramics prove inadequate.

nuclear fuel processinghigh-temperature refractory coatingsfluoride-based chemical reactorsradiation shieldingresearch ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	46.64	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	20.55	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.982	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	7.204	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	7.677	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.361	-	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000245	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000208	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-386	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	479.8	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00460	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.790	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.

KNaThF6

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental