Molecular formula: KBr
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Potassium bromide helps characterize liquid compounds using infrared spectroscopy. Infrared spectroscopy, like all types of spectroscopy, is a technique used to identify compounds and investigate sample compositions. Every molecule has a unique absorbance profile determined by passing a beam of infrared light through the sample.
Potassium bromide is a salt used to make photographic papers and plates and for process engraving. Found in general purpose and print developing solutions, potassium bromide is a highly soluble alkaline accelerator in solutions for X-ray films, continuous tone films requiring higher than normal contrast, intensifier solutions recommended for increasing the printing density of thin negatives, cold and warm tone developer solutions and universal developers for projection and contact papers.
Potassium bromide is often used in scientific research projects, including the isolation of plant plasma membrane proteins, insect lipoproteins, and apoflavoproteins. Capillary electrophoresis, the separation of double stranded DNA, uses potassium buffer solutions. Potassium bromide also provides the chemical intermediates for the manufacture of various industrial and research chemicals.