Potassium bromide (KBr) is a white crystalline compound that is widely used in analytical chemistry and spectroscopy. The IR grade of potassium bromide is a high-purity form that is specifically designed for use in infrared spectroscopy.
Potassium bromide is used as a sample holder or diluent in IR spectroscopy because it is transparent in the infrared region and does not absorb infrared radiation. The IR grade of potassium bromide is highly purified to remove impurities that may interfere with the analysis. This high level of purity ensures that the spectrum obtained is representative of the sample being analyzed.
In addition to its use in spectroscopy, potassium bromide has a wide range of other applications. It is used as a source of bromine in chemical synthesis and as a sedative in veterinary medicine. Potassium bromide is also used in the photography industry as a photographic emulsion.
Potassium bromide is generally considered safe for use in analytical and other applications when used according to standard safety procedures. However, it should be handled with care as it can cause skin and eye irritation and may be harmful if ingested or inhaled.