Zinc Bromide, Formula, Preparation Method, Chemical Properties

Zinc Bromide

It is an inorganic compound that has consists of colourless with a high solubility in water. It has a transparent film against the radiations. Whenever it is soluble in organic solvents with good solubility. It could be processed slowly but exceptions level of radiation is high. The systematic IUPAC name is known as zinc bromide. The chemical or molecular formula of acetamide is ZnBr2.

Structural Formula

This is the structural formula of the zinc bromide:

Zinc Bromide

Chemical Formula

The chemical formula of the zinc bromide is ZnBr2.


It contains the super tetrahedral in the composition of linked their vertices to form a three dimensional structure. It could be the length of zn-br bond is upto 221pm.

Preparation Method

When the zinc oxide is reacted with the hydrobromic acid to form the ZnBr2.2H2O. then it is treated with the dehydration of the hot CO2 with the anhydrous material of zinc metal and bromine. It gives the sublimation of stream in the hydrogen bromide.

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ZnO + 2 HBr + H2O → ZnBr2.2H2O

Zn + 2 HBr → ZnBr2 + H2

Physical Properties

Melting point 394C
Boiling point 697C
Molecular weight 255.18g/mol
Density 4.20g/cm3
Solubility in water 675g/100mL
Refractive index 1.5452
Appearance White crystalline powder
Solubility Very soluble in alcohol


Chemical Properties

Zinc bromide is a non-inflammable chemicals that is used to easily handle. By due to high acidity and osmolarity it causes the corrosion and other related problems. It is non hazardous to the environment. It is naturally white crystalline powder and hygroscopic structure. Zinc bromide is a colourless salt.


Zinc bromide is mainly used in oil industry, electrical industry and metal working companies. Zinc bromide is used as Lewis acid in organic chemistry. It is used in transparent film shield against radiation. It is widely used in electrical field. Zinc bromide is used in oil industry to displace mud. It is also used in metal working companies. It is the ionic compound used in various industrial field.

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