Rb3NaBe2F8 — Properties & Data | MatWorld

Rb3NaBe2F8

ceramic

· JVASP-21928· Rb3NaBe2F8

Rb3NaBe2F8 is a mixed-metal fluoride ceramic compound belonging to the family of complex fluoride materials, combining alkali metals (rubidium and sodium) with beryllium fluoride. This is a specialized research material studied primarily for its optical and crystal properties, particularly for applications requiring materials with specific refractive indices or transparency in the UV-visible spectrum. The beryllium fluoride backbone and alkali metal substitution make it a candidate for advanced optical components and specialized laser systems, though it remains largely in the research phase rather than widespread industrial production.

optical ceramics researchUV-transparent windowslaser host materialsscintillator applicationscrystalline materials developmentfluoride compound research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	37.10	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	22.06	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.478	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	7.183	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	10.60	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.064	-	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000992	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000205	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-142.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	462	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)	-3.260	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.

Rb3NaBe2F8

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental