U4 S8

semiconductor

· U4 S8

U4S8 is a uranium sulfide compound belonging to the family of actinide chalcogenides, which are intermetallic semiconductors of scientific and specialized industrial interest. This material has seen limited commercial adoption but appears in nuclear fuel research, advanced materials chemistry, and experimental semiconductor applications where its unique electronic and thermal properties under extreme conditions may be exploited. Engineers considering U4S8 should note that it requires specialized handling due to its uranium content, and its use is restricted to research institutions and licensed nuclear facilities; its primary value lies in fundamental studies of actinide chemistry and solid-state physics rather than mainstream engineering applications.

nuclear materials researchactinide compound studiessemiconductor experimentationhigh-temperature materials testingsolid-state physicsspecialized research applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000700	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.552	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.

U4 S8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control