KFeSeS

metal

· JVASP-102333· KFeSeS

KFeSeS is a complex metal compound containing potassium, iron, selenium, and sulfur—a quaternary chalcogenide phase that exists primarily in research and materials science contexts rather than established commercial production. This material family is investigated for its potential in thermoelectric applications, solid-state energy conversion, and semiconductor research, where the combination of heavy elements and mixed anion chemistry offers opportunities for tuning electronic and thermal properties. Engineers and researchers consider such compounds when seeking materials with unconventional band structures or reduced thermal conductivity for specialized energy harvesting or conversion devices.

thermoelectric devicessolid-state researchsemiconductor compoundsenergy conversionmaterials explorationchalcogenide systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1257	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	4.794	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02230	eV/atom	—
Formation Energy(ΔHf)	-0.7902	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.

KFeSeS

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control