Hg3Se4O5

ceramic

· JVASP-29462· Hg3Se4O5

Hg₃Se₄O₅ is an inorganic ceramic compound containing mercury, selenium, and oxygen—a mixed-metal oxychalcogenide that exists primarily in research and specialized laboratory contexts rather than as an established commercial material. This compound belongs to the broader family of selenium-based ceramics and mercury compounds, studied for potential applications in optics, sensing, and solid-state chemistry where its unique crystal structure and photochemical properties may offer advantages. As a research material, it represents the type of compositionally complex ceramic that could eventually find use in niche applications such as infrared optics or radiation detection, though it has not achieved widespread industrial adoption.

experimental ceramicsoptical materials researchsemiconductor oxychalcogenidessensing applicationssolid-state chemistrylaboratory scale materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2512	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.708	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.570	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.003	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.583	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00101	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000632	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-150.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	272	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)	-0.4781	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.

Hg3Se4O5 — Properties & Data | MatWorld

Hg3Se4O5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental