Li2H2SeO5 — Properties & Data | MatWorld

Li2H2SeO5

ceramic

· JVASP-50873· Li2H2SeO5

Li₂H₂SeO₅ is an inorganic ceramic compound containing lithium, hydrogen, selenium, and oxygen—a member of the selenate ceramic family with potential applications in ion-conducting and optical materials. This is primarily a research-phase compound studied for its crystal structure and functional properties rather than an established industrial material; the lithium selenate family shows promise in solid electrolytes and photonic applications where selenium-based ceramics can offer unique optical transparency and ionic transport characteristics.

solid-state electrolytes (research)optical ceramics (experimental)lithium-ion battery components (emerging)photonic materials (development stage)high-temperature ceramics (laboratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.428	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.186	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	4.792	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.829	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2433	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000818	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000176	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-163.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	473.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	3.800	%	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)	0.02030	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.356	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.

Li2H2SeO5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental