Potassium Chloride
KCl
Potassium Chloride finds application for IR laser windows due to its high laser damage threshold.
Absorption Coefficient (cm-1): 6.5x10-3 at 10.6µ
Apparent Elastic Limit (MPa): 2.3
Bulk Modulus (K) (GPa): 17.36
Cleavage Planes: (100)
Density (g.cm-3): 1.99
Dielectric Constant: 4.64 at 1MHz
Elastic Coefficient C11: 39.8
Elastic Coefficient C12: 6.2
Elastic Coefficient C44: 6.25
Hardness (knoop): 9.3
Melting Point (K): 1052
Poisson Ratio: 0.216
Reflection Loss (%): 6.7 at 10µ
Refractive Index: 1.45 at 10µ
Restrahlen Peak (µ): 63.1
Shear Modulus (G) (GPa): 6.24
Solubility (g/100g H2O): 34.7 at 293K
Specific Heat Capacity (J·kg·m-1·K-1): 690
Stability: Slightly Hygroscopic
Structure: Cubic
Thermal Conductivity (W·m-1·K-1): 6.53 at 300K
Youngs Modulus (E) (GPa): 29.67
Thermal Expansion (K-1 at 300K): 36x10-6
Transmission Range (µ): 0.21-20.0