Potassium chloride (KCl) is an ionic ceramic compound belonging to the halide family, characterized by a rock-salt crystal structure that provides moderate mechanical stiffness and brittle behavior typical of ionic crystals. It is widely used in optical and infrared applications due to its transparency across broad wavelength ranges, as well as in thermal and chemical contexts where its ionic nature and stability at moderate temperatures are advantageous. KCl is also employed in laboratory and industrial settings for specialized purposes including electrolysis, thermal insulation windows, and research applications where its well-understood mechanical and optical properties make it a reliable choice compared to more complex oxide ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 15.83 | GPa | — | ||
| ↳ | 15.83 | GPa | — | ||
| ↳ | 24.27 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.8015 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2556 | - | — | ||
| ↳ | 0.2600 | - | — | ||
Shear Modulus(G)3 entries | 9.241 | GPa | — | ||
| ↳ | 9.241 | GPa | — | ||
| ↳ | 15.04 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.343 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 8.500 | eV | — | ||
| ↳ | 5.348 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 6.943 | - | — | ||
| ↳ | 3.823 range 2.385–5.260median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -109.3 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.03570 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.263 | eV/atom | — | ||
| ↳ | -2.053 | eV/atom | — |