KRb2CrF6

metal

· JVASP-25843· KRb2CrF6

KRb₂CrF₆ is a complex fluoride compound containing potassium, rubidium, and chromium—a member of the elpasolite family of halide materials known for high ionic conductivity and chemical stability. This is primarily a research and materials science compound rather than a mainstream engineering material; it has been investigated for solid-state ionic conductor applications and as a precursor for specialized optical or electrochemical devices. The combination of alkali metals with chromium fluoride creates a crystalline structure of interest in fundamental studies of ionic transport and fluoride ion conductivity, making it relevant to researchers developing next-generation solid electrolytes or chemically inert host materials.

Solid-state ionic conductors (research)Fluoride electrolytesOptical materials developmentChemical corrosion-resistant coatingsLaboratory/experimental synthesis

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,309.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	3,341.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1310	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.395	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.541	-	DFT · OptB88vdW
Magnetic Moment(μB)	3.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000286	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000539	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-369.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	448.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	-2.995	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

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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.

KRb2CrF6 — Properties & Data | MatWorld

KRb2CrF6

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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