KNaMg2Si4O10F2 — Properties & Data | MatWorld

KNaMg2Si4O10F2

ceramic

· JVASP-57178· KNaMg2Si4O10F2

KNaMg₂Si₄O₁₀F₂ is a fluorine-bearing silicate ceramic belonging to the mica mineral family, specifically a potassium-sodium magnesium silicate with fluorine substitution. This material combines the layered crystal structure characteristic of micas with enhanced fluorine content, making it relevant for applications requiring thermal stability, electrical insulation, and chemical resistance. The compound is primarily encountered in research contexts and specialized industrial applications where its anisotropic properties and thermal performance offer advantages over conventional silicates and synthetic ceramics.

electrical insulation and dielectricshigh-temperature ceramicsaerospace thermal barriersspecialized refractory applicationsresearch and developmentmineral-based functional ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.856	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)2 entries	5.533	eV	DFT · OptB88vdW
↳	7.868	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.523	-	DFT · OptB88vdW
↳	2.046	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000683	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000370	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-110.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	455.4	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.012	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.

KNaMg2Si4O10F2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental