K2TeOF4

ceramic

· JVASP-10726· K2TeOF4

K2TeOF4 is a fluoride-based ceramic compound containing potassium, tellurium, oxygen, and fluorine—a specialty material that sits at the intersection of oxide and fluoride chemistry. This is primarily a research and development compound rather than an established industrial material; materials in this family are investigated for optical, thermal, and electrochemical applications where tellurium-containing fluorides offer unique refractive properties and thermal stability windows unavailable in conventional silicate or aluminate ceramics.

optical components (research)thermal barrier coatings (experimental)fluoride ceramics developmenthigh-temperature chemistry (specialized)solid-state electrolyte researchspecialty refractory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,982.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	1,683.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1272	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	4.817	eV	DFT · OptB88vdW
↳	6.804	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.750	-	DFT · OptB88vdW
↳	2.154	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000916	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000687	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-300	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	488.9	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)	0.02160	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.426	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.

K2TeOF4 — Properties & Data | MatWorld

K2TeOF4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental