KBrF4

ceramic

· KBrF4

KBrF₄ is an ionic ceramic compound belonging to the fluoride family, specifically a potassium bromine fluoride with mixed-valence characteristics. This material is primarily of research and developmental interest rather than established commercial use, studied for its potential in solid-state applications where fluoride ceramics offer high thermal stability and ionic conductivity. KBrF₄ exemplifies the broader class of complex fluoride ceramics that researchers investigate for advanced electrolytes, optical windows, and specialty chemical applications where conventional oxides fall short.

solid-state electrolytes (experimental)optical fluoride ceramics (research)high-temperature chemical resistanceionic conductivity studiesspecialized nuclear/chemical applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,845	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3500	-	DFT · OptB88vdW
Shear Modulus(G)	1,402.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1081	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	3.138	eV	DFT · OptB88vdW
↳	5.428	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	4.170 range 2.307–6.033median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.024	-	DFT · OptB88vdW
↳	2.349	-	DFT · TBmBJ
Magnetic Moment(μB)	3.977	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000842	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000300	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-261.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	453.3	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)	0.3520	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.409	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.

KBrF4 — Properties & Data | MatWorld

KBrF4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental