TaAu3

metal
· JVASP-126933· TaAu3

TaAu3 is an intermetallic compound combining tantalum and gold in a 1:3 atomic ratio, forming a hard metallic phase with very high density. This material exists primarily in research and specialty applications rather than high-volume production, valued for its extreme density and potential corrosion resistance from the gold content, though it remains largely experimental with limited commercial adoption.

radiation shielding researchhigh-density counterweightsdental/medical device prototypingaerospace research applicationswear-resistant coatings (experimental)intermetallic phase study

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Density(ρ)
17.67
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV
Magnetic Moment(μB)
0.000
µB
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.2919
eV/atom
Formation Energy(ΔHf)
0.2681
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.