K2TlBiF6 — Properties & Data | MatWorld

K2TlBiF6

ceramic

· JVASP-108578· K2TlBiF6

K2TlBiF6 is a complex fluoride ceramic compound containing potassium, thallium, and bismuth—a specialized material primarily of research interest rather than established industrial production. This material belongs to the family of heavy-metal fluorides, which have been investigated for optical and structural applications where their high refractive index and dense crystal structure offer potential advantages. The compound remains largely experimental; it is most relevant to materials scientists exploring advanced fluoride ceramics for photonic devices, radiation shielding, or specialized optical windows, though practical engineering adoption is limited due to toxicity concerns with thallium and the general scarcity of commercial applications for this specific composition.

research optical materialsfluoride ceramic compositesradiation shielding (experimental)photonic device substrates (research phase)heavy-metal fluoride systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.418	kg/m³	DFT · OptB88vdW

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.889	eV	DFT · OptB88vdW
↳	4.175	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.948	-	DFT · OptB88vdW
↳	2.354	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
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)	0.1136	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.474	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.

K2TlBiF6

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental