Lithium Bromide

Lithium bromide is a chemical compound of lithium and bromine. It has the formula LiBr. This compound can be produced by the action of hydrobromic acid on lithium hydroxide.

Structure and Formula

Lithium Bromide formula is LiBr and its structure is represented below.

Structure of Lithium Bromide
Structure of the compound (Source)

Physical Properties

AppearanceWhite solid
Density3.464 g/cm3
Melting Point550℃
Boiling Point1,300℃
SolubilitySoluble in water, methanol, ethanol, ether, acetone

Chemical Properties

When the compound is made to react with chlorine, bromine is replaced by chlorine, thus giving lithium chloride and bromine. This is an example of a single displacement reaction.

Cl2 + 2LiBr → Br2 + 2LiCl

The compound, upon reaction with silver nitrate, gives lithium nitrate and silver bromide.

LiBr + AgNO3 → LiNO3 + AgBr


  • The compound is used in air-conditioning systems as a desiccant. 
  • It is used as a salt in the absorption chilling along with water.
  • Also useful as reagent in organic synthesis.
  • It was used as a sedative in the early 1900s but later fell into disfavor due to newer sedatives, and other medical issues.
  • It was used on treating bipolar disorder.


What is lithium bromide used for?

It is used in the air-conditioning systems as a desiccant.

Is lithium bromide dangerous?

It may cause rash, nausea, diarrhea, drowsiness, and coma upon ingestion of small quantities. Ingestion of large quantities can cause kidney damage.

Is lithium bromide corrosive?

It is highly corrosive and readily attacks ferrous metals such as steel.

More on Inorganic Compounds

Mohr’s Salt (Fe(SO4)(NH4)2(SO4)(H2O)6)Sodium Potassium Tartrate (C4H4O6KNa.4H2O)
Calcium Nitrate Ca(NO3)2Sulfur Trioxide (SO3)
Sodium Sulfate (Na2SO4)Ammonium Bicarbonate ((NH4)HCO3)
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