Barium Oxide, Formula, Chemical Properties, Preparation, Uses

Barium Oxide

Barium oxide is a non inflammable compound and it has been mostly used in the cathode ray tubes. It has contain highly excessive quantities that leads to the death. The barium has positively charged as the cation and oxide has negatively charged as the anion. It has the combination of barium and oxide. The systematic IUPAC name is known as barium oxide. The chemical or molecular name of barium oxide is BaO. The other names are barium protoxide, calcined baryta and baria.

Structural Formula

This is the structural formula of the barium oxide:

Barium Oxide

Chemical Formula

The chemical formula of the barium oxide is BaO. It has consists of one barium ions and one oxygen ions.

What Method the Acetamide Can Be Produced

Barium oxide can be prepared by the heating barium carbonate at the temperature between 1000 to 1450C. it gives the result of barium oxide is the product and carbon dioxide is the byproduct. In the another method, the barium nitrate is heated by thermal decomposition or barium carbonate is heated with the coke, carbon black or tar. The chemical reaction is given as follows.

Learn More:   Magnesium Hydroxide, Formula, Preparation Method, Chemical Properties

2Ba + O2 → 2BaO

BaCO3 → BaO + CO2

Physical Properties

Melting point 1923C
Boiling point -2000C
Molecular weight 153.326g/mol
Density 5.72g/cm3
Solubility in water 3.48g/100mL
Crystal structure cubic
Magnetic susceptibility -29.1×10-6cm3/mol
Appearance White solid
Solubility Soluble in ethanol, dilute mineral acids and alkalies. Insoluble in acetone and liquid ammonia.
Coordination geometry octahedral

Chemical Properties

Barium oxide is a non inflammable substances. It has high melting point and boiling point is less than zero that means it is negative. It has octahedral in coordination geometry. It is soluble in ethanol and insoluble in acetone. It looks like a white solid in the appearance.


Barium oxide is used to coat cathodes. Barium oxide is used to oxidize and also fuels. It is mainly used in the production of optical crown glass. For making  the process of isomer separation.


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