Pa2 O4

semiconductor

· Pa2 O4

Pa₂O₄ is a protactinium oxide compound and an intrinsic semiconductor belonging to the rare actinide oxide family. This material is primarily of research and academic interest rather than established industrial production, with potential applications in nuclear materials science, radiation detection, and high-temperature ceramics where the unique electronic properties of actinide oxides may be exploited. Engineers considering this material should recognize it as an experimental compound requiring specialized handling due to protactinium's radioactivity, making it relevant only for specialized nuclear or advanced materials research rather than conventional engineering applications.

nuclear materials researchradiation detection prototypesactinide oxide studieshigh-temperature ceramic researchmaterials science exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	157.1	GPa	—
Shear Modulus(G)	65.76	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00790	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.619	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.

Pa2 O4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control