Barium sulfate (BAsO₄) is a high-density ceramic compound valued for its chemical inertness, radiation opacity, and dimensional stability across temperature ranges. It is widely used in industrial coatings, medical imaging contrast media, and radiation shielding applications, where its combination of density and non-toxicity makes it preferable to lead-based alternatives in many contexts. The material is also employed as a filler in polymers and elastomers to enhance weight and X-ray visibility without compromising material processability.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 59.20 | GPa | — | ||
Poisson's Ratio(ν) | 0.2000 | - | — | ||
Shear Modulus(G) | 45.48 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.573 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.469 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 5.800 | - | — | ||
| ↳ | 6.692 | - | — | ||
| ↳ | 4.374 range 3.050–5.698median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.2144 | C/m² | — | ||
| ↳ | 0.5100 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -167.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00330 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.558 | eV/atom | — | ||
| ↳ | -1.737 | eV/atom | — |