KBr window


He Rui optics' Potassium bromide (KBr) is a material commonly used in FTIR spectroscopy. Potassium bromide has a slightly wider spectral range than sodium chloride (NaCl) and has excellent transmittance between 250nm - 26μm. Within this range, its refractive index is between 1.46 - 1.59. Potassium bromide is water-soluble, so its surface cannot come into contact with moisture. Contact with moisture will cause the surface of the window to disintegrate. Potassium bromide windows have good resistance to mechanical impact and can be easily separated and used in environments up to 300°C. Its density is 2.75g/cm3, and its Knoop hardness is 7.0.

He Rui Optics KBr (potassium bromide) windows are crucial components used in Fourier Transform Infrared Spectroscopy (FTIR) technology. These windows are made from high-purity potassium bromide crystals and are widely used in Fourier transform infrared spectrometers due to their excellent transparency and chemical stability. KBr windows have a very high transmittance in the infrared spectrum, effectively transmitting infrared light signals, which ensures that the spectral characteristics of the sample can be accurately measured and analyzed. Additionally, KBr windows have good mechanical strength and abrasion resistance, making them capable of withstanding significant pressure and friction without easily breaking or getting damaged.KBr curve2.jpg

Materialoptical glass,BK7 ,Fused silica, Ge,Si,CaF2, ZnSe,ZnS,BaF2,MgF2,LiF,KBr,Nacl,Corning Eagle XG,sapphire,Corning 7980,Corning 7979,Corning 8655 JGS1,JGS2,JGS3,Low iron glass,soda lime glass,Gorilla glass,ITO glass,FTO glass,borofloat 33(BF33)
Diameter 1-500mm
Thickness0.1-50mm
Diameter Tolerance±0.01 mm
Center Thickness Tolerance±0.01mm
Surface Quality80/50,60/40,40/20,20/10
Clear Aperture>90%
parallelism+/-30''
CoatingCustom,AR coating,BBAR coating, DLC coating, AF/AS coating,Hydrophobic Coating, ITO/FTO coating.
AR+AF/AS coating,AR+DLC coating,ITO/FTO+AR coating
Bevel0.1~0.3mm x 45 degree

Can be customized according to your requirements





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