Arsenic trioxide (As₂O₃) is a ceramic compound and naturally occurring mineral form of arsenic oxide, commonly known as white arsenic. It has been historically important in glass manufacturing, particularly for producing optical and specialized glasses, and finds use in semiconductor applications and pharmaceutical contexts. As₂O₃ is notable for its role in controlling devitrification in glass systems and as a precursor material in compound semiconductor research, though its toxicity requires careful handling and makes it less common in modern consumer applications compared to safer alternative devitrification agents.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 21.29 | GPa | — | ||
Exfoliation Energy(Eexf) | 81.41 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2300 | - | — | ||
Shear Modulus(G) | 14.09 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.964 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 4.000 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
| ↳ | 4.149 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 6.480 | - | — | ||
| ↳ | 9.711 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -380.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00880 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -0.5210 | eV/atom | — | ||
| ↳ | -1.380 | eV/atom | — | ||
| ↳ | -1.261 | eV/atom | — |