Calcium hydride (CaH₂) is an inorganic ceramic compound and strong reducing agent commonly encountered in chemical processing and materials synthesis applications. It is primarily used as a desiccant for removing moisture from organic solvents and gases, and as a reducing agent in metallurgical and chemical manufacturing where its vigorous reaction with water is exploited to generate hydrogen gas or facilitate reduction reactions. Engineers select CaH₂ for specialized applications requiring potent drying or reducing capability in anhydrous environments, though its highly reactive nature and moisture sensitivity require careful handling and containment protocols.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 53.66 | GPa | — | ||
Poisson's Ratio(ν) | 0.2400 | - | — | ||
Shear Modulus(G) | 33.67 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.101 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.8960 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 11.58 | - | — | ||
| ↳ | 56.60 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -234.3 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.06240 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.6000 | eV/atom | — | ||
| ↳ | -0.6233 | eV/atom | — |