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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2362	lb/in³	—

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.

HgAsO4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental