Lithium bromide hydrate (LiBr•xH2O)-Crystalline

Characteristic

Lithium bromide (LiBr) is a chemical compound of lithium and bromine. Its extreme hygroscopic character makes LiBr useful as a desiccant in certain air conditioning systems.

Chemical formula：LiBr

Molar mass：86.845(3) g/mol

Appearance：White solid hygroscopic

Density：3.464 g/cm³

Melting point：552 °C (1,026 °F; 825 K)

Boiling point：1,265 °C (2,309 °F; 1,538 K)

Solubility in water：143 g/100 mL (0 °C);166.7 g/100 mL (20 °C);266 g/100 mL (100 °C)

Solubility：soluble in methanol, ethanol, ether, acetone

slightly：soluble in pyridine

Magnetic susceptibility (χ)：−34.7·10−6 cm³/mol

Refractive index (nD)：1.784

Application

Pharmaceuticals, air-conditioning, humectant, drying agent, batteries, low temperature heat-exchange mediumLithium bromide is used for reconstitution of brines, as swelling agent for proteins and as electrolyte component in lithium battery. Used as brazing and welding flux. Lithium bromide is used as catalyst for the condensation of carbonyl compounds with active methylene compounds in the absence of solvent, operating medium for air-conditioning and industrial drying system. Also used in manufacturing pharmaceuticals and alkylation process. It also plays an important role in the synthesis of dihydropyrimidinones.