Potassium Chloride (KCl) Windows

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  • Regular price $47.00



Potassium Chloride (KCl) is a commonly used material in FTIR spectroscopy. With low absorption and high damage threshold and a low index of refraction, KCl is an ideal candidate for use in CO2 laser applications as an inexpensive, disposable material. KCl is water soluble and the windows should be protected from exposure.

Firebird provides these in several uncoated stock configurations but can provide customized and coated to your specifications. 

Potassium Chloride (KCl):

Wavelength range: 210-20µm Coating: Uncoated
Diameter tolerance: ±0.25mm Surface Quality: 60/40
Thickness tolerance: ±0.25mm Paralellism: <3 arc minute
Clear Aperture: 90% Density: 1.989g/cm3
Melting point: 776ºC

Young's Modulus: (GPa): 29.67

Coefficient of Thermal Expansion: 36 x 10-6/°C Knoop Hardness: 780kg/mm2