K2NiF6

metal

· K2NiF6

K2NiF6 is a potassium nickel fluoride compound that belongs to the family of inorganic fluoride salts. While this material is primarily of research and laboratory interest rather than mainstream industrial production, it is studied in materials science for its potential applications in fluoride-based functional materials, particularly in fluoride-ion conductor research and optical/photonic material development. The compound's notable characteristics in its class include its crystalline structure and nickel coordination chemistry, which make it relevant for researchers exploring advanced ionic conductors, specialty optical materials, and catalytic applications where fluoride chemistry plays a central role.

fluoride-ion conductor researchoptical material developmentspecialty inorganic synthesiscatalysis researchsolid-state chemistry studies

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	2,469.6	ksi	DFT
↳	4,003	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	1,296.1	ksi	DFT
↳	1,966.7	ksi	DFT · OptB88vdW

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
Density(ρ)	0.1157	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)	1.535	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	4.749	-	DFT · OptB88vdW
↳	5.560	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.351	-	DFT · OptB88vdW
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000978	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000386	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-388.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	502.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.47	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.365	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

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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.

K2NiF6 — Properties & Data | MatWorld

K2NiF6

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