Barium is a soft, silvery-white alkaline earth metal with relatively low density and moderate stiffness. Industrial applications are limited for barium metal itself; instead, barium is primarily valued in compound forms (barium oxide, barium sulfate, barium carbonate) where it serves as a critical additive in ceramics, glass, pigments, and drilling fluids. Engineers select barium compounds for their ability to increase refractive index and opacity, provide X-ray shielding, or modify material properties in specialized coatings and composites.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 1,284.6 | ksi | — | ||
| ↳ | 1,431.5 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 3.051 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2343 | - | — | ||
| ↳ | 0.2300 | - | — | ||
Shear Modulus(G)2 entries | 829.5 | ksi | — | ||
| ↳ | 1,093.6 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1387 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 14.41 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.000 | eV/atom | — |