H2SeO4

ceramic

· JVASP-13915· H2SeO4

Selenic acid (H₂SeO₄) is an inorganic ceramic compound and the selenium analog of sulfuric acid, classified as an acidic oxide ceramic. While not widely used in structural applications, H₂SeO₄ appears primarily in specialized chemical and materials research contexts, including semiconductor processing, specialty glass formulations, and laboratory synthesis of selenium-containing compounds. Engineers would encounter this material in advanced materials development rather than conventional industrial applications, where its strong oxidizing properties and unique selenium chemistry make it valuable for niche electrochemical and optoelectronic applications.

specialty glass additivessemiconductor processingelectrochemistry researchoptoelectronic materials developmentlaboratory synthesis

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,839.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	2,046.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1098	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	3.401	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	7.052	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.283	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1498	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000718	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000267	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-140.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	415.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.06280	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6804	eV/atom	DFT · OptB88vdW

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.

H2SeO4 — Properties & Data | MatWorld

H2SeO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental