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Lithium bromide

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.

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Further Information

Names

IUPAC nameLithium bromide

Identifiers

CAS Number: 7550-35-8

JSmol: Interactive image

ChemSpider: 74049

ECHA InfoCard: 100.028.582

EC Number: 231-439-8

PubChem: 82050

RTECS number: OJ5755000

UNII: 864G646I84

Properties

Chemical formula: LiBr

Molar mass: 86.845(3) g/mol

Appearance: hygroscopic

Density: 3.464 g/cm

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: methanol

Magnetic susceptibility: −34.7·10 cm/mol−63

Refractive index: 1.784

Thermochemistry

Specific
heat capacity: 51.88 J/mol K

Std molar
entropy: 66.9 J/mol K

Std enthalpy of
formation: -350.3 kJ/mol

Gibbs free energy: -338.9 kJ/mol

Std enthalpy of
combustion: -157 kJ/mol

Hazards

NFPA 704:

Flash point: Not-flammable

median dose: 1800 mg/kg (oral, rat)

Related compounds

anions: Lithium fluoride

cations: Sodium bromide

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).

Infobox references