HgSO4 — Properties & Data | MatWorld

HgSO4

Name: HgSO4
Brand: MatWorld

ceramic

· HgSO4

Mercury sulfate (HgSO4) is an inorganic ceramic compound historically used in electrochemistry and analytical chemistry applications. Its primary industrial use has been in mercury cell chlor-alkali processes for chlorine and caustic soda production, though its application has substantially declined due to environmental and health concerns associated with mercury. The material is notable for its electrical conductivity properties in electrochemical cells, but modern practice has largely shifted to alternative technologies using membrane or diaphragm cells to eliminate mercury exposure risks.

electrochemical cells (historical)chlor-alkali production (legacy)analytical chemistry reagentsreference electrodeslaboratory instruments (outdated)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	72.49	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	21.13	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.271	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.491	eV	DFT · OptB88vdW
↳	3.417	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	14.03	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.059	-	DFT · OptB88vdW
↳	2.812	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.4267	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.727	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5573	C/m²	DFT · OptB88vdW
↳	0.2755	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000743	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00219	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-109.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	375.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.630	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.00660	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.010	eV/atom	DFT · OptB88vdW
↳	-1.216	eV/atom	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

HgSO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental