Potassium Chloride Circular Optical Windows, Firebird Optics

Supplier: Firebird Optics

KCl circular optical window

KCl circular optical window

KCL-25X4 KCL-49X6 KCL-32X3 KCL-50X3 KCL-38X6 KCL-13X2

76529-480EA 536.22 CAD

76529-480 76529-482 76529-472 76529-474 76529-476 76529-478

Potassium Chloride Circular Optical Windows, Firebird Optics

Optical Windows

KCl (Potassium chloride) optical window for use in FTIR spectroscopy.

Circular shape
Large transmission range of 210 nm to 20 μm
High transmission and high damage threshold
Can be used up to 400 °C in a dry environment
Low refractive index

Commonly used for FTIR spectroscopy and CO₂ laser applications.

Surface quality: 60/40 scratch dig
Tolerance: Diameter - ±0.25 mm; Thickness - ±0.25 mm
Aperture: 90% (clear aperture)

Melting point: 776 °C
Parallelism: <3 arc min
Density: 1.989 g/cm³

Young's Modulus: 29.67 (Gpa)
Knoop Hardness: 780 kg/mm²
Coefficient of Thermal Expansion: 36×10⁻⁶/°C

Certifications: In compliance with ISO 9001 standards.

Packaging: Windows are packaged in moisture-protective packaging.

Caution: Care must be taken to avoid exposure to moisture, which will degrade the optical surfaces.

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