Na4 Au2

semiconductor

· Na4 Au2

Na₄Au₂ is an intermetallic compound combining sodium and gold, belonging to the semiconductor class of metallic compounds. This material exists primarily in research contexts rather than established industrial production, representing an exploratory compound within the broader family of alkali metal–noble metal intermetallics. Interest in this compound centers on its potential electronic and structural properties arising from the interaction between highly electropositive sodium and the noble metal gold, making it relevant to fundamental materials science investigating unconventional semiconducting behavior in metallic systems.

materials researchintermetallic semiconductorselectronic structure studiesexperimental solid-state physicsemerging functional materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000900	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3230	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.

Na4 Au2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control