OsO4
ceramic· OsO4
Osmium tetroxide (OsO₄) is a highly toxic transition metal oxide ceramic compound characterized by its extreme density and significant stiffness. While primarily known as a powerful oxidizing agent in organic chemistry and histology (as a biological stain), OsO₄ has limited structural engineering applications due to its toxicity, volatility at moderate temperatures, and the specialized handling requirements it demands. Its use in materials engineering is restricted to niche applications where its unique chemical properties—rather than mechanical performance—are the critical factor.
biological specimen staining and microscopyorganic synthesis catalystspecialized analytical chemistryresearch compounds (non-structural)high-density reference standards
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 13.93 | GPa | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 9.680 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.278 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.072 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.05464 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -409.4 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00450 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.8161 | eV/atom | — | ||
| ↳ | -1.003 | 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.