Calcium bromide (CaBr₂) is an inorganic salt ceramic compound commonly encountered in ionic crystal form, characterized by its hygroscopic nature and moderate mechanical stiffness. In industrial practice, CaBr₂ serves primarily as a dense brine fluid in oil and gas well completion operations, where it provides high-density drilling and completion fluids without the toxicity concerns of some alternatives. Beyond petroleum applications, it functions as a desiccant, refrigerant medium, and laboratory reagent, making it valuable in scenarios where non-toxic, water-soluble salt solutions are preferred over hazardous organics or other dense brines.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3,670.9 | ksi | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3000 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 1,855 | ksi | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1238 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.308 | eV | DFT · OptB88vdW | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 7.993 | - | DFT · OptB88vdW | ||
| ↳ | 7.650 | - | DFT · PBE | ||
| ↳ | 5.426 range 3.318–7.535median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞) | 3.598 | - | DFT · OptB88vdW | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02860 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf)2 entries | -2.148 | eV/atom | DFT · OptB88vdW | ||
| ↳ | -2.360 | eV/atom | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data