CrF2 — Properties & Data | MatWorld

CrF2

Name: CrF2
Brand: MatWorld

metal

· CrF2

Chromium difluoride (CrF2) is an inorganic metal fluoride compound that belongs to the transition metal halide family. While primarily studied in research contexts for its potential in battery cathode materials and fluoride-based ionic conductors, CrF2 has limited established industrial production at scale. The material's interest stems from chromium's variable oxidation states and fluoride's strong electrochemical properties, making it a candidate for advanced energy storage and solid-state electrolyte applications where traditional oxide ceramics face performance limitations.

battery cathodes (research)solid-state electrolytesfluoride ion conductorselectronic materials developmentmaterials screening studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	-20.08	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	138.6	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4500	-	DFT · OptB88vdW
Shear Modulus(G)	-5.230	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.796	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.5540	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	7.503	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	89.79	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.740	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.887	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	8.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000915	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000538	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-313.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	402.2	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.1194	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.328	eV/atom	DFT · OptB88vdW
↳	-2.678	eV/atom	Measured

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.

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

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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.

CrF2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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