K2HgS2 — Properties & Data | MatWorld

K2HgS2

ceramic

· JVASP-58923· K2HgS2

K2HgS2 is an inorganic ceramic compound containing potassium, mercury, and sulfur, belonging to the sulfide ceramic family. This is a research-phase material with limited commercial production; it is primarily studied in materials science and solid-state chemistry for its potential electronic and optical properties within mercury sulfide-based ceramic systems. Engineers would consider this compound for specialized applications requiring specific electronic behavior or optical characteristics, though conventional alternatives (such as zinc sulfide or cadmium sulfide ceramics) remain more established for industrial use.

research semiconductorsoptical materials developmentsolid-state chemistrymercury sulfide compoundsexperimental electronicslaboratory synthesis

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.749	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.064	eV	DFT · OptB88vdW
↳	3.403	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.653	-	DFT · OptB88vdW
↳	3.585	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000872	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000574	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-157.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	380.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.690	%	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)	-0.8874	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.

K2HgS2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental