Chromium trioxide (CrO3) is an inorganic oxide semiconductor compound used primarily in electrochemical and catalytic applications. In industry, it serves as an oxidizing agent in chrome electroplating and anodizing processes, where it deposits protective chromium coatings on metal substrates, and as a catalyst or catalyst precursor in organic synthesis and air purification systems. Engineers select CrO3 for applications requiring strong oxidizing capability and selective reactivity, though its use requires careful handling due to toxicity and environmental considerations; it is increasingly being studied as an alternative semiconductor material for niche photocatalytic and sensing applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3,322.8 | ksi | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G) | 1,747.7 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1278 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.400 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 12.14 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.9449 | C/m² | — | ||
| ↳ | 0.6824 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | 9.520 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.3039 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.521 | eV/atom | — | ||
| ↳ | -1.402 | eV/atom | — |