Lithium bromide, commonly referred to as LiBr, is a chemical compound made up of lithium and bromine. It appears as a white, crystalline solid and is highly soluble in water. LiBr is primarily used in air conditioning systems and industrial refrigeration as a desiccant, helping to remove moisture from the air. In addition to its use in cooling systems, LiBr has applications in the pharmaceutical industry, where it can be used in certain medications. It is also utilized in chemical synthesis and as a catalyst in various reactions. Safety precautions are necessary when handling LiBr, as it can be harmful if ingested or inhaled.