KBr (Potassium bromide) optical window for use in FTIR spectroscopy.

• Excellent for all purpose FTIR spectroscopy
• Large transmission range of 250 nm to 26 μm
• Circular shape
• Resistant to mechanical shock

Good temperature resistance of up to 300 °C.

Surface quality: 60/40 scratch dig
Tolerance: Diameter - ±0.5 mm; Thickness - ±0.2 mm
Aperture: 90% (clear aperture)

Melting point: 728 °C
Parallelism: <5 arc min
Density: 2.753 g/cm³

Young's Modulus: 26.8 (Gpa)
Knoop Hardness: 7 kg/mm²
Coefficient of Thermal Expansion: 43×10⁻⁶/°C