KBr
Used as a window or lens within the infrared region up to 27.
As a prism, dispersion is lower than NaCl up to 16, so 16-25 is the most appropriate range of application.
It can also be used as a chip for tablet creation as absoraption spectral measurements of solid specimens.
As it is also quite hygroscopic,care should be taken as with NaCl.
KBr KBr

Calsium Fluoride(CaF2) * Lithium Fluoride(LiF) * Magnesium Fluoride(MgF2) * Barium Fluoride(BaF2)
Sodium Chloride(NaCl) * Potassium Bromide(KBr) * Potassium Chloride(KCl) * Cesium Iodide(CsI)

Table of Optical Crystal Characteristics 1 * Table of Optical Crystal Characteristics 2
Table of dispersion coefficents and Refraction table and ransmission range

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