RbBe2F5

ceramic

· RbBe2F5

RbBe2F5 is a fluoride ceramic compound combining rubidium, beryllium, and fluorine elements. This material belongs to the family of metal fluorides, which are typically studied for optical, thermal, and specialized electrolytic applications due to their unique crystal structures and chemical stability. RbBe2F5 remains largely a research-phase compound; the metal fluoride family shows promise in applications requiring high optical transparency in the infrared region, thermal stability, and chemical inertness, though industrial adoption is limited and material availability is restricted due to beryllium's toxicity concerns and regulatory constraints.

infrared optics (research phase)specialized ceramicsfluoride-based compoundsthermal-stable materialsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,563.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	2,668.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1055	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	7.609	eV	DFT · OptB88vdW
↳	11.13	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	4.583	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	1.946	-	DFT · OptB88vdW
↳	1.619	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.1210	C/m²	DFT · OptB88vdW
↳	0.1572	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.379	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.

RbBe2F5 — Properties & Data | MatWorld

RbBe2F5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental