Potassium bromide is widely used in the field of photography as a component in photographic developers and fixers. It helps to control the development process by restraining the reduction of silver ions, ensuring clearer and more detailed images. In medicine, it has been historically used as an anticonvulsant and sedative, particularly for treating epilepsy in both humans and animals. Additionally, it is employed in the oil and gas industry as a dense brine fluid in drilling operations to stabilize boreholes and control pressure. In analytical chemistry, it serves as a reagent in various tests and experiments, including the preparation of KBr pellets for infrared spectroscopy. Its applications also extend to the manufacturing of optical glasses and lenses, where it improves transparency and refractive properties, especially in infrared optics.