SeO2
ceramic· SeO2
Selenium dioxide (SeO2) is an inorganic ceramic compound primarily used as a specialized oxide in glass manufacturing, electronics, and optical applications. In industry, it serves as a glass colorant and decolorizer in borosilicate and soda-lime glasses, and appears in selenium-based rectifiers and photocells where its semiconducting properties are exploited. Engineers select SeO2 when requiring materials with specific optical transparency, thermal stability, or electrical characteristics in niche applications where selenium's unique electronic structure provides advantages over more common ceramic alternatives.
optical glass manufacturingglass colorants and additivesphotoelectric devicesspecialty ceramicsinfrared optics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 30.47 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 15.94 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.820 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.234 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 22.16 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.5309 | C/m² | — | ||
| ↳ | 0.6718 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -206.4 | µV/K | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05960 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.7777 | eV/atom | — | ||
| ↳ | -0.6724 | eV/atom | — |
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.
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.