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Potassium Chloride/Bromide


Potassium Bromide (KBr) is a crystalline compound of potassium and bromide with a rock-salt type structure. It is used in optical applications in the UV, Visible, MWIR, and LWIR waveband regions. KBr has a melting point of 730°C and must be used in a moisture-free environment as the polished surfaces degrade in a moist atmosphere.

The IR grade of Potassium Bromide (KBr) can be used as the windows for Fourier Transform Infra-Red (FTIR) spectroscopy. The wavelength extends from 0.23 to 25µm with a high value of transmission. This transmission averages about 90% from 0.3 to 20µm. Typical infrared applications using Potassium Bromide are lenses, prisms, spectroscopic cells, and windows.

Knight Optical supply quality custom-made infrared optics using Potassium Bromide to your specification.
Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.

Please contact our multilingual technical sales team and discover how Knight Optical’s high quality AMTIR optical components and service can improve your instrumentation and supply chain experience.

Potassium Chloride

Potassium Chloride (KCl) is a crystalline compound of potassium and bromide with a rock-salt type structure. It is used in optical applications in the UV, Visible, MWIR, and LWIR waveband regions. KCl has a melting point of 776°C and needs to be used in a moisture free environment as the polished surfaces degrade in a moist atmosphere.

IR grade Potassium Chloride (KCl) can be used for CO2 laser windows. The wavelength range extends from 0.21 to 20µm with a high value of transmission. This transmission averages about 90% from 0.3 to 18µm. Typical applications using Potassium Chloride are, for example, lenses, prisms, spectroscopic cells, and windows.

Knight Optical supply quality custom made infrared optics using Potassium Chloride to your specification.
Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality Potassium Chloride optical components and service can improve your instrumentation and supply chain experience.

Our 2018/2019 Catalogue

Inside Knight Optical’s catalogue you’ll find details of the industries we serve as well as the many other services we can offer. It also showcases hundreds of our most popular products, supported by useful technical information, to help you choose the right part for your application.
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