Lithium bromide, molecular formula: LiBr. White cubic Crystal Series crystalline or granular powder, easily soluble in water, soluble in ethanol and ether, slightly soluble in pyridine, soluble in methanol, acetone, ethylene glycol and other organic solvents. It is an efficient water vapor absorbent and air humidity regulator. It can be used as absorption refrigerant, hydrogen chloride remover in organic chemistry, fiber fluffy agent, hypnotic agent and sedative in medicine, also used in photosensitive industry, analytical chemical reagent and electrolyte in some high-energy batteries.