Rb2GeB4O9

ceramic

· Rb2GeB4O9

Rb2GeB4O9 is a rare-earth borate ceramic composed of rubidium, germanium, and boron oxide phases. This is a research compound rather than an established commercial material, belonging to the family of mixed-metal borates that are investigated for their optical, thermal, and structural properties. Such materials are of interest in specialized ceramics where boron oxide networks provide chemical durability and tunable refractive index, while the rubidium and germanium components modify density and thermal behavior.

optical ceramics (research)scintillator developmentrefractory applications (exploratory)solid-state chemistryfunctional ceramic researchthermal management (experimental)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1191	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	5.540	eV	—
↳	4.072	eV	—
Magnetic Moment(μB)	0.000	µB	—

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	—
Formation Energy(ΔHf)	-2.407	eV/atom	—

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

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.

Rb2GeB4O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental