HgTaO2S

ceramic

· HgTaO2S

HgTaO2S is a quaternary ceramic compound containing mercury, tantalum, oxygen, and sulfur—a mixed-anion ceramic in the oxysuflide family that remains largely experimental. This material is primarily of interest in solid-state chemistry and materials research for its potential in photocatalytic and optoelectronic applications, where the combination of transition-metal (Ta) and chalcogenide (S) character with mercury's heavy-atom effects may offer tunable band gaps and unique light-absorption properties. Engineers would consider HgTaO2S-type compounds as candidates for advanced photocatalysts, thin-film semiconductors, or optical materials where conventional binary oxides or sulfides prove insufficient, though practical engineering adoption remains limited pending demonstration of scalable synthesis, chemical stability, and performance advantages.

photocatalytic materials (research)semiconductor thin filmsoptoelectronic devices (exploratory)mixed-anion ceramicssolar energy conversion (theoretical)materials discovery

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	-0.0000645	μB	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.3200	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.

HgTaO2S

Electrical Properties

Other Properties

Regulatory Screening

Environmental