HgAsO4
ceramic· JVASP-119222· HgAsO4
Mercury arsenate (HgAsO4) is an inorganic ceramic compound containing mercury and arsenic oxyanions, classified as a heavy metal oxide ceramic. This material is primarily of historical and research interest rather than modern engineering use; it appears in legacy applications including certain pigments, preservatives, and analytical chemistry reagents, though most such applications have been phased out or restricted due to mercury and arsenic toxicity. Engineers would rarely select this material for new designs, as safer alternatives exist for virtually all former applications, and regulatory restrictions on mercury in most jurisdictions make procurement and disposal problematic.
legacy pigments (discontinued)historical preservativesanalytical chemistry referencetoxicology researchhazardous waste characterization
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.539 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1935 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.6295 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.