K2 Hg4

semiconductor

· K2 Hg4

K2Hg4 is an intermetallic compound combining potassium and mercury, belonging to the class of mercury-based semiconducting materials. This is primarily a research-phase compound studied for its electronic properties rather than a widely commercialized engineering material; it represents the broader family of alkali-metal mercury intermetallics being investigated for potential thermoelectric, photonic, or other electronic applications where mercury's unique electronic structure offers design advantages.

experimental thermoelectricssemiconductor researchlow-temperature electronicsphase-change materials (exploratory)fundamental materials science

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00290	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3120	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

K2 Hg4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control