Potassium Bromide is one of the most useful materials for general purpose spectroscopic windows and applications where sensitivity to moisture is unimportant. KBr is the most commonly used beamsplitter material for IR spectrophotometers. Potassium Bromide is used for windows and prisms when transmission through the 0.25 µm - 26 µm range is desired. Potassium Bromide is water soluble and must be protected against moisture degradation of polished surfaces. The material cleaves readily, and can be used at temperatures up to 300 °C. Irradiation of Potassium Bromide produces color centers. Potassium Bromide is produced in large ingots by the Kyropoulos growth method. It cleaves easily. With care it can be polished to a high standard under humidity controlled conditions.

Maximum available size:
140 mm Dia x 30 mm Thk

The following products from KBr are available:

  WINDOWS

  BLANKS

  LENSES