Chinese name: Lithium bromide English name: Lithium bromide Chemical formula: BrLi Molecular weight: 86.85 CAS Registry Number: 7550-35-8 EINECS number: 231-439-8 Density: 3.464 Melting point: 442–547°C Boiling point: 1265°C Appearance: White powder or granular crystals, cubic crystal system. Colorless transparent or pale yellow liquid. Solubility: Soluble in water and ethanol; slightly soluble in pyridine. Uses: 1. Acts as an efficient water vapor absorbent and air humidity regulator. 2. Widely used in the refrigeration industry as an absorption refrigerant; in the organic industry as a hydrogen chloride scavenger and organic fiber expander. 3. Used in medicine as a hypnotic and sedative. 4. Employed in the battery industry as an electrolyte for high-energy and micro batteries. 5. Also used in the photographic industry and analytical chemistry.