HgAu
metal· JVASP-124323· HgAu
HgAu is a mercury-gold alloy that combines the properties of two highly dense, noble metals. While not widely used in mainstream engineering, this alloy has historical significance in dental amalgams and specialized laboratory applications where its unique combination of high density, corrosion resistance, and workability at room temperature may be advantageous. Engineers considering this material should note that mercury-containing alloys face increasing regulatory restrictions in many jurisdictions due to health and environmental concerns, making alternatives the preferred choice for most modern applications.
historical dental amalgamshigh-density specialty alloyslaboratory/research applicationscorrosion-resistant coatings (legacy use)noble metal research compounds
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.